Bleeding Hemorrhoids: What’s Normal and When It’s an Emergency

Short answer: a little bright red blood on toilet paper or in the bowl after a bowel movement is the classic sign of a hemorrhoid, but any rectal bleeding should be checked by a clinician at least once, because other conditions, including colorectal cancer, can look the same. Heavy bleeding, bleeding that will not stop, black or tarry stools, dizziness or faintness need emergency care the same day.

Why hemorrhoids bleed

Hemorrhoids are swollen cushions of tissue and blood vessels in and around the anal canal (see what hemorrhoids are and internal vs external). The lining over internal hemorrhoids is thin and has no pain-sensing nerves of the kind found at the anal opening, so a hard stool or straining can scrape it and it bleeds, often without any pain. The NIDDK describes the typical picture as bright red blood on the stool, on toilet paper or in the toilet bowl after a bowel movement. The NHS gives the same description.

External hemorrhoids sit under the skin around the anus. They more often cause itching, a tender lump or an ache when sitting, but a thrombosed (clotted) external hemorrhoid can burst and bleed; see thrombosed hemorrhoid symptoms.

The usual triggers are the ones behind most flare-ups: straining, hard stools from constipation, long spells on the toilet, a low-fiber diet and, for some people, pregnancy or heavy lifting (all listed by NIDDK). Our guide to why straining causes hemorrhoids explains the pressure mechanism.

A pattern consistent with hemorrhoids is not proof of hemorrhoids. That is why the rest of this page keeps coming back to one rule: the first time you see rectal bleeding, get it examined, even if it is a few streaks and even if you are fairly sure what it is.

Bright red, dark red, maroon and black: what the colors can mean

Color is a clue to where in the digestive tract the blood may be coming from, but it is only a clue. MedlinePlus explains that red or fresh blood in the stool usually comes from the lower tract (the colon, rectum or anus), while black, tarry, foul-smelling stool points to bleeding higher up, such as the stomach or the first part of the small intestine. Blood can also darken as it travels, so deep red or maroon blood can come from higher in the colon.

What you see	What it can suggest	What to do
A few streaks of bright red blood on paper, or drops in the bowl, after a bowel movement	The classic hemorrhoid or anal fissure pattern (also see hemorrhoids vs fissures)	Book an appointment to have it examined, especially if it is the first time or it keeps happening. Painless bleeding should be seen promptly.
Bright red blood mixed through the stool, or repeated bleeding over days	Could still be a hemorrhoid, but other lower-bowel conditions are possible	See a clinician soon; do not keep self-treating without a diagnosis.
Dark red or maroon blood, or clots	Bleeding that may be heavier or from higher in the colon	Same-day medical advice. Go to emergency care if the amount is large or you feel faint.
Black, tarry, sticky, foul-smelling stool	Often bleeding from the upper digestive tract (MedlinePlus)	Treat as urgent. Emergency care, especially with dizziness, vomiting blood or abdominal pain.
Blood plus a change in bowel habit, weight loss, tiredness or pallor	Needs investigation of the whole bowel	Make an appointment promptly; mention every symptom.

Some things can make stool look dark or red without bleeding. MedlinePlus lists black licorice, blueberries, iron pills, activated charcoal and bismuth products such as Pepto-Bismol as causes of dark stool, and beets or red-colored foods as causes of a reddish tint. If you took one of these and the stool is simply dark, a stool test can show whether blood is present; but if you are dizzy, weak or in pain, do not assume it is the food.

Emergency signs: go now

The wording below is drawn from MedlinePlus, the NHS and the NIDDK. None of it is a diagnosis; it is a list of situations where waiting is the wrong choice.

• Heavy bleeding: a lot of blood in the toilet, large clots, or bleeding that will not stop (NHS: go to A&E or call 999; MedlinePlus: call 911 or go to the ER for a lot of blood in the stool).
• Black, tarry stools (MedlinePlus).
• Symptoms of blood loss: lightheadedness, dizziness, feeling faint, a racing heart, or looking very pale. MedlinePlus lists lightheadedness or dizziness from the bleeding as a reason for emergency care.
• Vomiting blood, or vomit that looks like coffee grounds.
• Chest pain or trouble breathing along with the bleeding.
• Severe abdominal pain with bleeding, or severe anal pain (NIDDK: seek care right away for severe anal pain and rectal bleeding, especially with abdominal pain, diarrhea or fever; NHS: severe pain is an emergency).

If you take a blood thinner, or any medicine that affects clotting, bleeding is more likely to be significant. Do not stop or change a prescribed medicine on your own; call the prescriber or emergency services and tell them what you take.

See a doctor soon (not an emergency)

Even when none of the emergency signs are present, these call for an appointment within days rather than weeks:

• The first time you notice blood from the rectum, however small.
• Painless bleeding. The NHS lists painless bleeding from the bottom as a reason to ask for an urgent GP appointment or call NHS 111.
• Bleeding that keeps coming back, or continues after about a week of sensible home care. NIDDK advises seeing a doctor if symptoms last beyond one week of at-home treatment, and also for any bleeding from the rectum.
• A change in your usual bowel habit that lasts, such as new constipation, looser stools, or a feeling that you cannot empty your bowel fully.
• Fever, feeling generally unwell, or pus leaking from a pile (NHS: urgent appointment).
• Tiredness, breathlessness on exertion or looking pale, which can be signs of slow blood loss.
• A hemorrhoid that stays out, turns dark or becomes extremely painful (see prolapsed hemorrhoid and hemorrhoid warning signs).

Other causes of rectal bleeding

Hemorrhoids are the most common explanation, but MedlinePlus groups the causes of rectal bleeding into less serious ones (anal fissure and hemorrhoids) and more serious ones. The longer list includes colon, small intestine or stomach cancer, polyps, diverticular disease, inflammatory bowel disease (Crohn disease and ulcerative colitis), abnormal blood vessels and injury to the bowel from radiation. Anal fissures, small tears in the lining of the anal canal, are a very common cause of bright red blood with pain during or after a bowel movement.

None of this is meant to alarm you: most people who see a doctor for rectal bleeding turn out to have a benign cause. The point of the examination is to find out which one you have, because the safe treatment depends on it and a hemorrhoid can exist alongside something else.

What the exam involves

NIDDK describes how hemorrhoids are diagnosed. It usually starts with questions about your symptoms, eating and toilet habits, laxative or enema use and other conditions, followed by a look at the skin around the anus. A digital rectal exam (a gloved, lubricated finger) checks for tenderness, blood, internal hemorrhoids and lumps. A short lighted tube (anoscope) may be used to see the lining of the anus and lower rectum; it is done in an office, and most people do not need anesthesia. A longer scope (proctosigmoidoscopy) can look at the rectum and lower colon.

Depending on your age, symptoms, family history and what the doctor finds, you may also be offered further tests, such as a stool test, blood tests (for example to check for anemia) or a colonoscopy, in which a thin flexible tube with a camera is passed through the rectum to look at the colon (MedlinePlus). Whether and when a colonoscopy is advised is an individual decision and depends on guidelines your clinician will apply; we do not give an age threshold here.

If you feel embarrassed, it may help to know that the exam is routine for the clinician, takes a few minutes, and can usually be paused if you are uncomfortable. You can ask for a chaperone.

Home care while you wait for your appointment

Once the emergency signs above are ruled out, the aim is to avoid making things worse. These are the first-line measures described by NIDDK and the NHS; they ease symptoms and do not substitute for the examination.

• Keep stools soft. Eat fiber-rich foods, drink fluids, and ask your clinician or pharmacist before starting a fiber supplement (see how much fiber you need and the hemorrhoid diet guide).
• Do not strain or sit for long on the toilet. Go when you feel the urge. More in how to stop straining.
• Warm baths. The NHS suggests a warm bath to ease itching and pain, and NIDDK suggests sitting in warm water several times a day; see how to do a sitz bath.
• Clean gently. Pat the area dry rather than rubbing, and avoid perfumed wipes.
• Cold packs wrapped in a towel can ease discomfort (NHS).
• Ask a pharmacist about over-the-counter creams and what is suitable for you; NIDDK says doctors usually recommend them for about a week.

Take note of what you see so you can describe it accurately: how long it has been happening, the color, whether it is on the paper, in the bowl or mixed in the stool, and whether you have pain, dizziness or a change in bowel habit. A short written note helps.

What to avoid when you are bleeding

• Do not take ibuprofen if your piles are bleeding (NHS). Ask a pharmacist which pain reliever is suitable for you, particularly if you take a blood thinner or have stomach or kidney problems. Aspirin and other anti-inflammatory painkillers can also raise bleeding risk, so check first.
• Avoid codeine-based painkillers if you can, because they cause constipation (NHS).
• Do not start herbal products without asking. Some, such as ginkgo, may raise bleeding risk in people on anticoagulants; see herbal supplements for hemorrhoids. Do not put essential oils or home-made pastes on bleeding or broken skin.
• Do not assume it is hemorrhoids because it has happened before. New or different bleeding deserves a fresh look.
• Do not stop or change prescribed medicines because of bleeding. Speak to the prescriber.

Many remedies circulate online for hemorrhoids, and most are about comfort rather than bleeding. Our home remedies guide sorts them by what the evidence supports. Bleeding is the one symptom where trying remedies first is the wrong order: examination comes first.

Questions to ask your doctor or pharmacist

• Is this bleeding consistent with hemorrhoids, a fissure, or something that needs further tests?
• Do I need a colonoscopy or other test, and when?
• Could my blood count be low, and should I be checked for anemia?
• Do any of my medicines (blood thinners, aspirin, anti-inflammatories, supplements) make bleeding more likely, and which pain reliever is safe for me?
• What amount or color of blood should make me call you or go to the emergency department?
• What should I do for comfort in the meantime, and for how long before I should come back?

Frequently asked questions

Is it normal for hemorrhoids to bleed?

Bleeding is a common hemorrhoid symptom, usually a small amount of bright red blood after a bowel movement. Common does not mean it should be ignored: rectal bleeding should be examined at least once to rule out other causes.

How much bleeding from hemorrhoids is too much?

There is no safe number to memorize. Large amounts of blood, clots, bleeding that will not stop, or any bleeding with dizziness, faintness, chest pain or severe pain is an emergency (MedlinePlus, NHS). Smaller amounts that recur still need an appointment.

Can hemorrhoids cause black stool?

Hemorrhoids typically cause bright red blood. Black, tarry, foul-smelling stool usually points to bleeding higher in the digestive tract, according to MedlinePlus, and needs urgent assessment. Iron pills, bismuth products, black licorice and blueberries can also darken stool, but do not assume that is the reason.

Is painless rectal bleeding a hemorrhoid?

It can be, because internal hemorrhoids often bleed without pain, but the NHS treats painless bleeding from the bottom as a reason to seek an urgent appointment. It needs to be looked at.

How long should I wait before seeing a doctor?

If you have not been examined before, do not wait for it to stop. NIDDK advises seeing a doctor for any bleeding from the rectum, or if symptoms continue after a week of home care. Emergency signs mean go the same day.

Can straining or constipation make hemorrhoids bleed?

Yes. Hard stools and straining can scrape the thin lining over internal hemorrhoids. Softening stool and avoiding straining are first-line measures, but they do not replace a check for other causes.

Should I use a hemorrhoid cream if I am bleeding?

Creams can ease itching and discomfort for a short time; NIDDK says doctors usually recommend them for about a week. They do not explain bleeding. Ask a pharmacist, and arrange the examination.

Do home remedies stop hemorrhoid bleeding?

We found no reliable evidence that herbal or kitchen remedies stop bleeding, and some can irritate or interact with medicines. Soft stools and avoiding straining are the supported measures. Heavy or persistent bleeding needs medical care.

Related reading

• Hemorrhoid Warning Signs: When to See a Doctor
• Thrombosed Hemorrhoid: Symptoms and Treatment
• What Are Hemorrhoids? Causes, Symptoms and Types
• Hemorrhoid Grades 1 to 4 Explained
• How to Relieve Hemorrhoid Pain Fast at Home
• Home Remedies for Hemorrhoids: What the Evidence Supports