Hemorrhoids: Symptoms, Causes, and Treatments That Work

Almost everyone gets hemorrhoids at some point. The National Institute of Diabetes and Digestive and Kidney Diseases estimates about 1 in 20 Americans has symptomatic hemorrhoids right now, and roughly half of adults over 50 will deal with them at some point in their lives. They're common, they're treatable, and they're almost always less scary than they feel the first time you see blood on the toilet paper.

What follows is what the actual clinical guidelines say - what hemorrhoids are, which symptoms belong to which type, what the evidence supports for treatment, and the specific bleeding patterns that mean stop reading and call a doctor.

What Hemorrhoids Actually Are

Everyone has hemorrhoidal tissue. It's a normal part of anatomy - three vascular cushions of blood vessels, smooth muscle, and connective tissue that sit inside the anal canal and help you stay continent. They act like a physiological plug, closing the canal at rest and yielding a little as stool passes.

What people call "hemorrhoids" is what happens when those cushions become engorged, inflamed, or slip out of position. As the review in the World Journal of Gastroenterology lays out, chronic straining and increased pressure stretch the supporting connective tissue until the cushions prolapse downward and their veins dilate. That's the disease. The tissue itself was always there.

The distinction between internal and external is anatomical, based on a small landmark called the dentate line inside the anal canal:

• Internal hemorrhoids sit above the dentate line. They're covered in mucosa (like the inside of your mouth) and have no pain-sensing nerves. They can bleed heavily without hurting at all.
• External hemorrhoids sit below the dentate line. They're covered in normal skin with normal pain nerves, which is why they can itch, burn, or become severely painful - especially if a clot forms inside one (a thrombosed hemorrhoid).
• Mixed hemorrhoids straddle both zones. They're common and can produce symptoms from both categories at once.

Internal hemorrhoids are graded on the Goligher scale, which classifies them by how much they prolapse. Grade I hemorrhoids bleed but don't prolapse. Grade II prolapse during straining and reduce on their own. Grade III prolapse and require manual pushing back in. Grade IV are permanently prolapsed. This grading, described in detail in a 2022 review in the Annals of Coloproctology, is what your doctor will use to pick a treatment.

Symptoms: How Internal and External Differ

The specific symptoms depend on which type you have. Guessing based on how it feels isn't always accurate - a lot of what people call "hemorrhoid pain" turns out to be an anal fissure - but here's the pattern most gastroenterologists see.

Internal hemorrhoids

• Painless bright red bleeding during or right after a bowel movement. Blood on the toilet paper, streaks on the stool surface, or drips into the bowl water.
• A sense of incomplete evacuation, like something is still in the way.
• Prolapse: a soft, sometimes tender lump that pushes out during bowel movements. Depending on grade, it retracts on its own, needs a gentle nudge, or stays out.
• Mucus discharge and staining on underwear, particularly with grade III-IV.

Internal hemorrhoids typically don't hurt because the tissue above the dentate line has no somatic pain fibers. If the pain is sharp or burning, it's more likely a fissure or a thrombosed external hemorrhoid.

External hemorrhoids

• A visible or palpable lump at the anal margin.
• Itching and irritation from mucus, moisture, and difficulty cleaning the area.
• Aching or soreness that often flares after a hard bowel movement or long sitting.
• Sudden severe pain and a purple, hard bump = thrombosed external hemorrhoid. A clot has formed in the vein. Pain typically peaks within 48 to 72 hours and then eases as the clot organizes.

The prospective survey published in the Journal of Comparative Effectiveness Research found the most common initial symptoms across patient reports were pain (60%), bleeding (47%), and general discomfort (43%). Only a minority described their first presentation as prolapse.

What Actually Causes Them

Hemorrhoids are a mechanical problem. Something has to be pushing on those anal cushions repeatedly or persistently, and the same short list of habits shows up over and over in the epidemiology.

Straining

This is the single most consistent driver in the literature. Bearing down forces blood into the hemorrhoidal veins and stretches the supporting tissue. A 2021 review in the Journal of Personalized Medicine identifies straining as a primary risk factor along with a sedentary lifestyle and constipation. The specific triggers vary, but the mechanism is the same: repeated abdominal pressure spikes.

Chronic constipation - and chronic diarrhea

Constipation gets the blame, but diarrhea is a risk factor too. Frequent watery stools mean more time on the toilet, more wiping, and more irritation of the anal canal. Both extremes on the Bristol Stool Chart - hard type 1-2 or watery type 6-7 - correlate with hemorrhoid symptoms. If you're logging your stools and consistently seeing either end of the scale, that's a treatable pattern.

Prolonged toilet sitting

Sitting on the toilet with an unsupported perineum for long periods lets gravity engorge the hemorrhoidal veins. Reading, scrolling, and lingering are directly implicated. The clinical guidance from the American Society of Colon and Rectal Surgeons is explicit about minimizing time on the toilet as part of first-line therapy.

Pregnancy

Between one-quarter and one-third of pregnancies involve symptomatic hemorrhoids, and rates climb further in the third trimester. Three things converge: pregnancy hormones relax vein walls, the growing uterus increases pressure on pelvic veins, and constipation is common in pregnancy. Most postpartum hemorrhoids resolve within weeks of delivery with conservative care.

Low fiber, low fluid

A Cochrane review of seven randomized trials covering 378 patients found that increasing dietary fiber reduced hemorrhoidal bleeding and symptoms by roughly 50%. Not a small effect. The mechanism is straightforward: soft, bulky stool passes without straining.

Age, weight, and heavy lifting

Hemorrhoid prevalence peaks between 45 and 65. The connective tissue supporting the anal cushions weakens over time, which is why symptomatic hemorrhoids are relatively rare before age 20. Obesity and repetitive heavy lifting also come up as independent risk factors in cross-sectional studies.

Home Treatment: What the Guidelines Actually Recommend

The 2024 ASCRS clinical practice guidelines are unambiguous: conservative management is first-line for grade I-III internal hemorrhoids and for most external symptoms. The evidence for the boring stuff is stronger than the evidence for most of the branded creams.

Fiber, seriously

The Cochrane analysis mentioned above is the reason "eat more fiber" is a serious clinical recommendation, not a wellness cliché. Target 25 to 30 grams a day, mostly from food - beans, oats, berries, leafy vegetables, ground flaxseed. If food alone doesn't get you there, psyllium (Metamucil) has the best evidence base. Start with a teaspoon and work up over a week to avoid gas. Our guide to fiber intake covers the specifics of hitting that target without wrecking your gut.

Fluids

Fiber without fluid can make things worse. Aim for enough water that your urine is pale yellow. There's no magic number, and the "eight glasses" advice isn't backed by data, but for people whose stools are consistently hard, drinking more water is often the cheapest lever.

Sitz baths

Sit in warm (not hot) water for 10 to 15 minutes, two to three times a day, especially after bowel movements. This relaxes the internal anal sphincter, improves local blood flow, and provides symptom relief. A dedicated sitz bath basin over the toilet works, but a regular bathtub with a few inches of water is fine. No epsom salts required - plain water is what the trials tested.

Get off the toilet

Aim for under five minutes per bowel movement. If nothing happens, get up and come back later. Reading, scrolling, and prolonged sitting turn a normal defecation into a hemorrhoidal insult. This is one of the most consistent recommendations across guidelines and one of the most consistently ignored.

Squatty potty and posture

A footstool that raises your knees above your hips shifts the puborectalis muscle to a more open angle, reduces straining, and shortens time on the toilet. The evidence is modest but the intervention is essentially free. If straining is your issue, try it.

Topical treatments

Over-the-counter creams and suppositories fall into two camps: numbing agents (lidocaine, pramoxine) and vasoconstrictors (phenylephrine, the active ingredient in Preparation H). They're symptomatic - they don't shrink the hemorrhoid, they just reduce pain and swelling for a few hours. Hydrocortisone creams help with itching and inflammation but shouldn't be used for more than about a week without medical supervision because they can thin the skin.

Thrombosed external hemorrhoids

Sharp pain and a hard purple lump under the anal skin is usually a thrombosed external hemorrhoid. If you're within 48 to 72 hours of onset, an office incision to remove the clot provides fast relief. After 72 hours, the pain usually starts to fade on its own and conservative care (sitz baths, ice, NSAIDs, stool softeners) is typically enough. This is one of the few situations where earlier is meaningfully better - if the pain is severe, don't wait it out.

When Home Care Isn't Enough: Office Procedures

If bleeding, prolapse, or symptoms don't improve after four to six weeks of conservative care, most gastroenterologists move to an office procedure. These are done without general anesthesia and let you go home the same day.

Rubber band ligation

The workhorse procedure for grade I-III internal hemorrhoids. A tiny rubber band is placed at the base of the hemorrhoid, cutting off its blood supply. Over about a week, the tissue dies and falls off, taking the hemorrhoid with it. Long-term success rates are strong: a multi-year outcome study reported recurrence rates of about 10% for endoscopic band ligation. Most people need one to three sessions.

Sclerotherapy

An injection of a chemical solution shrinks the hemorrhoid over a few weeks. Slightly less effective than band ligation but useful for smaller grade I-II hemorrhoids and for patients on blood thinners who can't safely have banding.

Infrared coagulation

A quick burst of infrared light coagulates the tissue at the base of the hemorrhoid. It's fast, well-tolerated, and works best for small grade I-II hemorrhoids. Recurrence rates are higher than band ligation, so it's often not the first choice for larger ones.

Surgery: When It's Actually Needed

Surgery is reserved for grade IV hemorrhoids, large mixed hemorrhoids, or when office procedures have failed. It works - but it hurts, and the recovery is real.

• Excisional hemorrhoidectomy is the most effective option with the lowest recurrence rate. A randomized trial in JAMA Surgery-adjacent literature found recurrence rates around 6% for hemorrhoidectomy versus 47% for banding in grade III disease. The tradeoff is significant postoperative pain and about a week to ten days off work.
• Stapled hemorrhoidopexy uses a circular stapler to remove a ring of tissue above the hemorrhoids and pull them back into position. Less pain than excision, but higher long-term recurrence rates.
• Doppler-guided hemorrhoidal artery ligation (HAL/THD) uses ultrasound to locate and tie off the arteries feeding the hemorrhoids. Less painful than excision. Recurrence is higher than excisional surgery but often acceptable for grade II-III disease.

When Bleeding Is Not Just Hemorrhoids

This is the section that matters most. Rectal bleeding is the most common presenting sign of hemorrhoids, but it's also a symptom of things you can't afford to miss. Colorectal cancer incidence is rising in adults under 50 - up roughly 2% a year in that age group, per the American Cancer Society - and the bleeding pattern can overlap with what people assume is a hemorrhoid flare.

See a doctor if you have:

• Any rectal bleeding after age 45, even if you're sure it's a hemorrhoid. This is the age the US Preventive Services Task Force recommends starting colon cancer screening.
• Dark red, maroon, or tarry black stool. Hemorrhoid bleeding is bright red and stays on the surface. Blood mixed into the stool or from higher up in the GI tract looks different and needs investigation.
• A change in bowel habits that lasts more than two weeks - narrower stools, new constipation, new diarrhea, unexplained urgency.
• Unexplained weight loss, fatigue, or anemia symptoms. Chronic low-level bleeding can drop your iron over months without dramatic symptoms.
• Bleeding that soaks through toilet paper or drips continuously into the bowl, or bleeding that doesn't stop within a few minutes.
• Family history of colorectal cancer, inflammatory bowel disease, or polyps. Your baseline risk is higher, and screening should start earlier.

If you're not sure what the bleeding actually looks like, our stool color chart covers what different colors and bleeding patterns can signal. Any bleeding that doesn't match the classic hemorrhoid pattern - bright red, on the paper, painless - deserves a real evaluation, not a self-diagnosis.

Prevention Is the Same as Treatment

The habits that treat hemorrhoids are the same ones that prevent them. Fiber and fluids to keep stools soft. Time-limited toilet visits. No phones in the bathroom, or at least a timer. Regular movement - the PLOS ONE colonoscopy risk-factor study found sedentary behavior independently predicts hemorrhoid presence. Address constipation early with fiber, magnesium, or an osmotic laxative rather than pushing through it.

If you're prone to recurrent flares, the useful move is figuring out what precipitates them. Travel and diet changes, stress-driven constipation, a new medication, hormonal shifts - all common. A simple log of stool form, straining, blood, and any hemorrhoid symptoms over a few weeks makes the pattern visible in a way that memory alone won't.