If you’ve noticed a bit of bright red blood after a bowel movement and nothing else, no pain, no lump you can feel, there’s a good chance you’re dealing with internal hemorrhoids. They’re one of the most common reasons people search their symptoms online at 11pm, and also one of the most misunderstood.
I’m McLee Tembo, founder of NFH Clinic. Over the years, I’ve talked to hundreds of patients who assumed rectal bleeding automatically meant something serious. I’ve also met just as many who ignored it for months because it didn’t hurt. Both reactions are understandable. Internal hemorrhoids sit in an odd spot: they’re rarely dangerous, yet the symptoms overlap with conditions that need urgent attention. This guide walks you through what they are, why they behave the way they do, and what actually helps.
Key Takeaways
- Internal hemorrhoids develop inside the rectum and are usually painless.
- Bright red rectal bleeding is the most common symptom.
- Grade I and II hemorrhoids often improve with fiber, hydration, and lifestyle changes.
- Persistent prolapse or heavy bleeding may need medical treatment.
- Any rectal bleeding is worth evaluating if it’s recurrent, heavy, or paired with other warning signs.
💬 This article is for general educational purposes and isn’t a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified doctor about your specific symptoms, especially with any rectal bleeding.
Overview
Internal hemorrhoids are swollen veins that form inside the rectum. They’re extremely common, affecting people of nearly every age, and painless bleeding is usually the first sign something’s off. Most cases respond well to simple changes at home, while more advanced cases may need an in-office procedure or surgery. The quick reference below covers the basics before we go deeper into symptoms, causes, and treatment.
Internal Hemorrhoids at a Glance
| What it is | Swollen blood vessel cushions inside the rectum, above the dentate line |
| Most common symptom | Painless, bright red rectal bleeding |
| Pain level | Usually painless; pain signals prolapse, thrombosis, or strangulation |
| Main causes | Straining, chronic constipation, pregnancy, low-fiber diet, prolonged sitting |
| Grading | Grade I to IV, based on degree of prolapse |
| First-line treatment | Fiber, hydration, and toilet habit changes |
| When it needs a procedure | Grade III to IV, or symptoms that don’t improve with lifestyle changes |
| Can it come back | Yes, especially if underlying causes aren’t addressed |
In this article:
- What Are Internal Hemorrhoids?
- Internal Hemorrhoids vs External Hemorrhoids
- What Causes Internal Hemorrhoids?
- Internal Hemorrhoids Symptoms
- The Internal Hemorrhoid Grading System (Grade I to IV)
- Prolapsed Internal Hemorrhoids
- Thrombosed Internal Hemorrhoid
- Internal and External Hemorrhoids: When It's Not "Just Hemorrhoids"
- How Are Internal Hemorrhoids Diagnosed?
- Internal Hemorrhoids Treatment
- Do Internal Hemorrhoids Go Away on Their Own?
- Can Internal Hemorrhoids Come Back?
- Preventing Internal Hemorrhoids
- Internal Hemorrhoids: Myth vs Fact
- Frequently Asked Questions
- The Bottom Line on Internal Hemorrhoids
What Are Internal Hemorrhoids?
Internal hemorrhoids are swollen cushions of blood vessels that form inside the rectum, above a boundary called the dentate line. Everyone has these cushions naturally. They help control bowel movements and cushion the anal canal. They only become “hemorrhoids” in the medical sense once they swell, stretch, or lose their normal support.
Here’s the part most articles skip: why they bleed without hurting. The dentate line marks a real shift in nerve supply. Above it, where internal hemorrhoids form, there are very few pain-sensing nerves. The tissue can stretch, swell, and even tear slightly during a bowel movement, causing bleeding, without sending a pain signal at all. Once a hemorrhoid slips below that line and prolapses outside the anus, it enters territory packed with pain nerves. That’s exactly why prolapsed hemorrhoids often start to hurt when the earlier stages didn’t.
Sometimes an internal hemorrhoid stretches enough to slip down and push through the anus. This is called prolapse. Depending on how far it protrudes, it may go back in on its own, need to be pushed back gently, or stay out permanently until treated. We’ll come back to prolapse in more detail further down.
Internal Hemorrhoids vs External Hemorrhoids
People use “hemorrhoids” as one term, but internal and external hemorrhoids behave differently, and knowing which one you have changes what treatment makes sense.
| Feature | Internal Hemorrhoids | External Hemorrhoids |
|---|---|---|
| Location | Above the dentate line, inside the rectum | Below the dentate line, under the skin around the anus |
| Pain | Usually painless | Usually painful |
| Bleeding | Very common | Less common |
| Itching | Sometimes | Common |
| Visible lump | Only if prolapsed | Usually visible |
| Blood clot (thrombosis) | Rare | Common |
It’s common to have both internal and external hemorrhoids at the same time, which is why symptoms can sometimes blur together. When people say “rectal hemorrhoids” in general conversation, they’re usually referring to either type, or both.
What Causes Internal Hemorrhoids?
There’s rarely a single cause. Instead, internal hemorrhoids usually develop from repeated pressure on the veins in the rectum over time. Common contributors include:
- Straining during bowel movements
- Chronic constipation or, less commonly, chronic diarrhea
- Sitting on the toilet too long, including scrolling on your phone while you’re there
- A low-fiber diet
- Pregnancy, due to hormonal changes and pressure from the growing uterus
- Obesity and a sedentary lifestyle
- Age, since the tissue supporting these veins naturally weakens over time
- A family tendency toward weaker vein walls
Who Is Most Likely to Get Internal Hemorrhoids?
You’re at higher risk if you:
- Are pregnant or have recently given birth
- Are overweight
- Regularly lift heavy weights
- Have chronic constipation or chronic diarrhea
- Sit for long periods, at a desk or behind the wheel
- Are over age 50
- Have a family history of hemorrhoids
Can Stress Cause Internal Hemorrhoids?
Not directly. Stress itself doesn’t inflame the veins in your rectum. However, it can contribute indirectly. Stress often leads to poor eating habits, dehydration, irregular bowel movements, or long stretches of sitting, and any of those can raise your risk over time.
Can Exercise Make Internal Hemorrhoids Worse?
Most moderate exercise, like walking, swimming, or cycling, actually helps prevent hemorrhoids by keeping bowel movements regular. Heavy weightlifting is the exception. Lifting very heavy loads, especially while holding your breath, can temporarily spike pressure in the rectal veins. If you lift regularly and already deal with hemorrhoids, focusing on proper breathing technique and moderate loads is worth discussing with a doctor or trainer.
Internal Hemorrhoids Symptoms
Internal hemorrhoids symptoms are often quiet at first, which is exactly why so many people delay checking them out. Here’s what to actually watch for:
- Painless bleeding. Usually bright red blood on toilet paper, in the toilet bowl, or coating the stool. This is the most common sign by far.
- A feeling of fullness or incomplete emptying after a bowel movement.
- Mucus discharge or slight moisture around the anus.
- Itching, especially if mucus irritates the surrounding skin.
- A lump you can feel or see if the hemorrhoid has prolapsed outside the anus.
- Pain, but only in specific situations (explained below).
Do Internal Hemorrhoids Bleed?
Yes, and bleeding is usually the first and sometimes only symptom. It happens because straining puts pressure on the swollen tissue until the thin lining tears slightly. The bleeding itself is rarely heavy. Still, any rectal bleeding is worth mentioning to a doctor, simply because a handful of more serious conditions can look identical in the early stages.
Can Internal Hemorrhoids Burst?
Not in the way people imagine. Internal hemorrhoids don’t “burst” like a balloon. What actually happens is that the thin surface covering the swollen blood vessel tears slightly during a bowel movement, which is what causes the bright red bleeding. It can look alarming in the toilet bowl, but the bleeding is usually minor and stops on its own within minutes. Heavy bleeding, or bleeding that keeps happening over several bowel movements, should always be checked by a doctor.
Do Internal Hemorrhoids Hurt?
Generally, no, for the reasons covered earlier around the dentate line and nerve supply. That said, pain can show up when:
- The hemorrhoid prolapses and gets pinched by the anal muscle
- It becomes strangulated, meaning its blood supply gets cut off
- A blood clot forms inside it (thrombosis)
So while “painless hemorrhoids” is the norm, pain isn’t out of the question, and it usually signals that the hemorrhoid has moved into a more advanced stage.
Internal Hemorrhoids Symptoms in Women
Internal hemorrhoids symptoms in women often show up for the first time during pregnancy or shortly after childbirth. Rising progesterone relaxes vein walls, while the growing uterus adds direct pressure on rectal veins, and pushing during labor adds even more strain. Postpartum constipation, a common side effect of iron supplements and reduced mobility, tends to make things worse before they improve. The good news is that pregnancy-related hemorrhoids frequently shrink on their own within weeks of delivery, once that pressure and hormone level drop.
The Internal Hemorrhoid Grading System (Grade I to IV)
Doctors classify internal hemorrhoids into four grades based on how much they prolapse, a system also outlined by StatPearls/NCBI’s clinical overview of hemorrhoids. This matters because your grade largely determines your treatment options and how long symptoms tend to stick around.
- Grade I: The hemorrhoid stays inside the rectum. No prolapse. Bleeding may occur, but there’s nothing to see or feel from the outside.
- Grade II: The hemorrhoid prolapses during straining or a bowel movement, then slides back in on its own.
- Grade III: The hemorrhoid prolapses and needs to be pushed back in manually. It won’t retract by itself.
- Grade IV: The hemorrhoid stays prolapsed permanently and can’t be pushed back in at all. This is the most advanced stage and usually needs surgical treatment.
Grade I and II hemorrhoids typically respond well to lifestyle changes and in-office procedures. Grade III and IV usually need a more involved approach, sometimes surgery, particularly if symptoms keep coming back.
How Long Do Internal Hemorrhoids Last?
It depends heavily on the grade:
- Grade I: Often improves within a few days to a couple of weeks once straining eases up.
- Grade II: Can take several weeks to settle, and may need an office procedure if it keeps recurring.
- Grade III: Symptoms often persist without treatment and tend to need an in-office procedure.
- Grade IV: Rarely improves without medical or surgical treatment.
These are general patterns, not guarantees. Some people with mild hemorrhoids see them return repeatedly if the underlying cause, usually straining or constipation, isn’t addressed.
Prolapsed Internal Hemorrhoids
A prolapsed hemorrhoid is internal tissue that has slipped down and pushed through the anal opening. It typically looks like a soft, moist, pinkish bump. It can feel uncomfortable simply because the anus itself is packed with pain nerves, even though the hemorrhoid tissue itself isn’t. Most mild cases retract on their own shortly after a bowel movement. If one doesn’t, it can usually be pushed back gently with a clean, lubricated finger. A prolapse that won’t go back in, turns painful, or starts changing color needs medical attention the same day.
Thrombosed Internal Hemorrhoid
Thrombosis, a blood clot forming inside the hemorrhoid, is far more common in external hemorrhoids. However, it can happen with a prolapsed internal hemorrhoid too, particularly one that gets trapped and loses blood flow. When this happens, the usual painless pattern changes completely. A thrombosed hemorrhoid tends to be:
- Firm or hard to the touch
- Swollen and often bluish or purple in color
- Genuinely painful, not just uncomfortable
It isn’t dangerous in the sense of being life-threatening, but it does need prompt care since the tissue can become strangulated if left alone.
Internal and External Hemorrhoids: When It’s Not “Just Hemorrhoids”
Rectal bleeding is common enough that it’s easy to assume it’s always hemorrhoids. Most of the time, that assumption is right. Still, it’s worth seeing a doctor rather than guessing, because a few red flags deserve a proper look:
- Blood that’s dark, maroon, or mixed into the stool rather than sitting on the surface
- Unexplained weight loss
- A noticeable change in bowel habits lasting more than a couple of weeks
- Persistent abdominal pain
- Bleeding in anyone over 45, or anyone with a family history of colorectal cancer
None of these automatically mean something serious. But as Mayo Clinic also notes, they’re reasons to get checked rather than self-treat.
When to See a Doctor About Internal Hemorrhoids
As a general guide, reach out to a doctor if:
- Bleeding lasts more than a week
- Symptoms are getting worse rather than better
- You develop severe pain
- Home treatment hasn’t helped after about a week
When Internal Hemorrhoid Bleeding Is an Emergency
Routine hemorrhoid bleeding is rarely an emergency, but a few signs mean you shouldn’t wait for a regular appointment:
- Bleeding is heavy and doesn’t stop
- You feel faint, dizzy, or lightheaded after bleeding
- You’re passing large blood clots
- You have severe abdominal pain along with rectal bleeding
- You notice black, tarry stools, which can point to bleeding higher up in the digestive tract
Any of these warrant urgent care or an emergency room visit rather than a wait-and-see approach.
How Are Internal Hemorrhoids Diagnosed?
Diagnosis usually follows a straightforward sequence. Your doctor starts by taking a history and asking about your symptoms, then moves to a physical exam. From there, it typically goes:
Physical exam → digital rectal exam → anoscopy → flexible sigmoidoscopy, if needed → colonoscopy, if red flags are present
The digital rectal exam involves a gloved, lubricated finger checking for lumps or tenderness. Internal hemorrhoids sit higher up and can be hard to feel this way. That’s why your doctor may also use an anoscope, a short, lighted tube that lets them see the lower rectum directly. If your symptoms are unusual for your age, or any red flags apply, they may recommend a colonoscopy to rule out other causes of bleeding. Cleveland Clinic recommends this step whenever bleeding doesn’t have an obvious explanation. Knowing the steps ahead of time tends to make the whole process feel a lot less intimidating.
Internal Hemorrhoids Treatment
Treatment depends heavily on the grade and how much the symptoms are bothering you. Here’s how the options break down.
Lifestyle Changes for Internal Hemorrhoids (First Line Treatment)
These help regardless of grade and often prevent hemorrhoids from coming back:
- Increase fiber gradually. Adults generally do well aiming for around 25 grams a day for women and 38 grams a day for men. Get there through fruit, vegetables, and whole grains, or a fiber supplement if diet alone falls short. Increase slowly and drink plenty of water, since a sudden jump in fiber without enough fluid can cause bloating.
- Aim for soft, easy-to-pass stool. Doctors often describe the ideal consistency using the Bristol Stool Chart, roughly a type 3 or 4, smooth and formed but not hard or lumpy.
- Stay hydrated. Most adults do well with somewhere around 2 to 3 liters of fluid a day. The right amount for you depends on activity level, climate, and any medical conditions you have.
- Watch your toilet habits. Avoid sitting for longer than five to ten minutes. Prolonged sitting increases pressure inside the hemorrhoidal veins even if you aren’t actively straining. If nothing happens within a few minutes, get up and try again later.
- Try a sitz bath. Soaking the anal area in warm, plain water for 10 to 15 minutes, two or three times a day, is one of the most consistently recommended home remedies for hemorrhoid discomfort. A shallow basin that fits over the toilet seat works just as well as a bathtub.
- Stay active. Even a 20 to 30 minute walk most days helps stimulate regular bowel movements and reduces the prolonged pressure that builds up from sitting.
- Respond to the urge to go rather than holding it in.
Diet plays a bigger role than fiber grams alone. Foods that tend to help include oats, apples, pears, beans, lentils, leafy greens, and prunes. Some people find that excess alcohol, highly processed foods, and generally low-fiber meals make symptoms worse. There isn’t solid evidence that spicy food directly causes hemorrhoids, so it’s not something to fear, though it’s worth noticing if it seems to irritate your symptoms personally.
Over-the-Counter Options for Internal Hemorrhoids
There are two different categories of OTC help, and they do different jobs.
Topical treatments. Creams, suppositories, and medicated wipes containing hydrocortisone or witch hazel can ease itching and irritation. They don’t shrink the hemorrhoid itself, but they make day-to-day symptoms more manageable while lifestyle changes take effect. One caution worth knowing: hydrocortisone creams generally shouldn’t be used for more than about a week unless your doctor tells you otherwise. Prolonged use can thin the surrounding skin.
Oral fiber supplements and stool softeners. Psyllium, found in products like Metamucil, bulks up stool so it passes with less straining. Stool softeners such as docusate sodium (Colace) draw water into the stool to soften it instead. Both work on the actual cause of most flare-ups rather than just the symptoms, which is why doctors often recommend them alongside, not instead of, dietary fiber.
In-Office Procedures for Internal Hemorrhoids
For Grade I to III hemorrhoids that don’t settle with home care, several minimally invasive options exist:
- Rubber band ligation. A small band is placed at the base of the hemorrhoid, cutting off its blood supply so it shrinks and falls away within about a week. This is the most commonly performed office procedure for internal hemorrhoids and has a strong success rate for Grade I to III cases.
- Sclerotherapy. A solution is injected into the hemorrhoid to close off its blood supply.
- Infrared photocoagulation. Infrared light is directed at the hemorrhoid to seal off blood flow.
- Electrocoagulation. A small electric probe seals the base of the hemorrhoid tissue.
These procedures are quick, usually done without anesthesia, and carry minimal downtime.
Internal Hemorrhoid Surgery
Surgery is typically reserved for Grade IV hemorrhoids, or Grade III cases that keep recurring despite office treatment. Options include:
- Hemorrhoidectomy. Surgical removal of the hemorrhoid. It’s the most effective long-term option, particularly for large or repeatedly prolapsing hemorrhoids, though recovery takes longer than office procedures.
- Stapled hemorrhoidopexy. A stapling device repositions the prolapsed tissue and cuts off its blood supply. Recovery tends to be quicker than a traditional hemorrhoidectomy, though recurrence is somewhat more likely with larger hemorrhoids.
Your doctor will weigh grade, symptom severity, and your overall health before recommending one approach over another.
Typical Recovery Timelines for Internal Hemorrhoid Treatment
Recovery varies from person to person, but as a general guide:
| Treatment | Typical Recovery |
|---|---|
| Lifestyle changes alone | Days to a few weeks |
| Rubber band ligation | About 2 to 7 days |
| Sclerotherapy | A few days |
| Infrared photocoagulation | A few days |
| Stapled hemorrhoidopexy | Roughly 1 to 3 weeks |
| Hemorrhoidectomy | Roughly 2 to 6 weeks |
Do Internal Hemorrhoids Go Away on Their Own?
Sometimes, yes, particularly at Grade I and II, where addressing straining and constipation often lets things settle without a procedure. Grade III and IV are a different story. By that stage, the supporting tissue has usually stretched too much to recover on its own. Most people at those stages need an in-office treatment or surgery to actually resolve it, not just manage symptoms. For the fuller breakdown of what to expect at each stage, see the grading and recovery timelines above.
Can Internal Hemorrhoids Come Back?
Yes, even after successful treatment. If the underlying causes stick around, things like constipation, straining, obesity, prolonged sitting, or a low-fiber diet, there’s a real chance hemorrhoids return. This is true whether you treated them with lifestyle changes, an office procedure, or surgery. Even hemorrhoidectomy, the most definitive option, doesn’t guarantee they’ll never come back if old habits creep back in. Maintaining the fiber intake, hydration, and toilet habits covered above is genuinely the best long-term defense, surgery or not.
Preventing Internal Hemorrhoids
Prevention comes down to consistency rather than a separate set of rules. The same habits that treat mild hemorrhoids also keep them from coming back: steady fiber intake, good hydration, regular movement, and not lingering on the toilet. The one addition worth flagging separately is timing: don’t wait for a flare-up to start paying attention. Treating constipation early, before it turns into straining, is what actually keeps rectal hemorrhoids from becoming a repeat problem.
Internal Hemorrhoids: Myth vs Fact
| Myth | Fact |
|---|---|
| Hemorrhoids always hurt. | Internal hemorrhoids are usually painless. Pain tends to show up only with prolapse, strangulation, or a clot. |
| Bleeding always means cancer. | Hemorrhoids are a much more common cause of rectal bleeding, but any bleeding is still worth having checked. |
| Surgery is always needed. | Most internal hemorrhoids improve with lifestyle changes or a simple in-office procedure, without surgery. |
| Spicy food causes hemorrhoids. | There’s no solid evidence spicy food causes them, though it may irritate symptoms for some people. |
Frequently Asked Questions
What causes hemorrhoids?
Hemorrhoids develop from repeated pressure on rectal veins, most often from straining, chronic constipation, pregnancy, obesity, prolonged sitting, or a low-fiber diet. Age and genetics play a role too, since the tissue supporting these veins weakens over time.
Are internal hemorrhoids painless?
Usually, yes. Internal tissue has very few pain nerves, so bleeding is often the only symptom. Pain tends to appear only when the hemorrhoid prolapses, becomes strangulated, or develops a clot.
What’s the difference between internal piles and external hemorrhoids?
Internal piles form above the dentate line and are typically painless, while external hemorrhoids form under the skin around the anus and are more prone to pain, itching, and clotting.
Can a thrombosed internal hemorrhoid be an emergency?
Not typically life-threatening, but it does need prompt medical attention, since the trapped blood clot can cause significant pain and, if untreated, tissue damage.
When should I worry about rectal bleeding from internal hemorrhoids?
See a doctor if bleeding is heavy, dark rather than bright red, accompanied by weight loss or a change in bowel habits, or if you’re over 45. Most rectal bleeding is hemorrhoids, but it’s worth ruling out other causes.
Can internal hemorrhoids turn into cancer?
No, hemorrhoids don’t turn into cancer. That said, colorectal cancer can cause similar symptoms, including rectal bleeding, which is exactly why persistent or unexplained bleeding should always be evaluated rather than assumed to be hemorrhoids.
The Bottom Line on Internal Hemorrhoids
Internal hemorrhoids are common, usually painless, and in most cases very manageable once you know what stage you’re dealing with. The key is not ignoring bleeding just because it doesn’t hurt, and not panicking over it either. A proper diagnosis tells you exactly where you stand and which treatment, if any, makes sense.
If you’re dealing with symptoms that aren’t settling with home care, the team at NFH Clinic is here to help you figure out the right next step, without the guesswork.
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