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why does my poop have blood in it

Blood in your poop is never considered “normal” and usually means there is bleeding somewhere in your digestive tract, ranging from minor issues like hemorrhoids to serious problems like ulcers, inflammatory bowel disease, or even cancer. It is important to get checked by a doctor, especially if the bleeding is new, heavy, or you have other symptoms like pain, weight loss, or feeling weak.

Quick Scoop

Seeing blood in your poop can be scary, but the cause ranges from relatively mild to very serious, so it is a sign your body should not be ignored. The exact color and amount of blood, plus your other symptoms, help doctors figure out what is going on.

Common causes

Some causes are benign but still need attention, especially if they keep coming back.

  • Hemorrhoids (swollen veins in the anus or rectum) often cause bright red blood on the toilet paper or on the outside of the stool and may itch or hurt when you poop.
  • Anal fissures (small tears in the anus) usually cause sharp pain with bowel movements and bright red streaks of blood on the stool or paper.
  • Gastroenteritis or “tummy bugs” can cause bloody diarrhea along with cramping, nausea, or fever when infection irritates the gut lining.
  • Inflammatory bowel disease (Crohn’s disease or ulcerative colitis) can cause chronic diarrhea, belly pain, weight loss, and recurring blood in stool.
  • Colon polyps and colorectal cancer can bleed slowly or intermittently; sometimes bleeding is visible, sometimes only picked up on tests.
  • Stomach or small‑intestine ulcers and higher‑up bleeding can make your poop look very dark, black, or tar‑like rather than bright red.

What the color can mean

The appearance of the blood gives clues about where it is coming from.

  • Bright red on the paper or surface of stool: Often from hemorrhoids or fissures near the anus or lower rectum.
  • Dark red or maroon mixed into stool: Can suggest bleeding higher in the colon or small intestine and needs prompt medical evaluation.
  • Black, tar‑like stool: May indicate bleeding in the stomach or upper intestine, such as from an ulcer or certain medicines like blood thinners, and is an urgent warning sign.
  • Red‑looking poop after foods: Beets, tomatoes, and some red or purple foods can temporarily make stool appear bloody even when it is not, but you should not assume this without being checked.

When it is an emergency

You should seek urgent or emergency care (ER / 999 / 911 depending on where you live) if you notice any of the following with blood in your poop:

  • Passing a lot of blood, blood clots, or repeated large amounts of blood in the toilet.
  • Sudden bloody diarrhea with strong cramping or fever.
  • Feeling lightheaded, dizzy, faint, very weak, sweating, or having a fast heartbeat.
  • Black, tar‑like stools, especially with stomach pain or vomiting.
  • Severe or worsening abdominal pain.

Even if the bleeding seems small, you should book a soon appointment with a doctor if:

  1. The bleeding is new or keeps happening.
  2. You are over 40–45, or have a family history of bowel cancer or inflammatory bowel disease.
  3. You have weight loss, loss of appetite, fatigue, or changes in your usual bowel pattern (new constipation or diarrhea).

What you can do right now

While waiting to be seen, some gentle steps may help reduce irritation, but they do not replace getting checked.

  • Do not ignore or self‑diagnose blood in stool as “just hemorrhoids,” especially if this is new for you.
  • Drink enough fluids and eat fiber‑rich foods (fruits, vegetables, whole grains) to keep stool softer and reduce straining if you are constipated.
  • Avoid heavy straining on the toilet and long “phone scrolling” toilet sessions, which can worsen hemorrhoids.
  • If you take blood thinners (like warfarin) or iron pills and notice dark or bloody stool, contact your prescriber promptly.

This post is general information only and not personal medical advice. Any blood in your poop should be discussed with a qualified healthcare professional as soon as possible.

Information gathered from public forums or data available on the internet and portrayed here.