Fresh blood rectal bleeding: what to know

Bright red blood often comes from the lower bowel, rectum, or anus. Hard stools, straining, haemorrhoids, and a small anal tear can irritate these areas. Diarrhoea and inflammation can also cause bleeding; conditions such as Crohn's Disease or Ulcerative Colitis may present with blood alongside urgency, cramps, or loose stools. Diverticular Disease can bleed suddenly. Less commonly, bowel polyps or cancers can bleed, so the symptom should not be dismissed simply because the blood is fresh.

Note the colour and amount of blood, whether it is on the paper, coating the stool, mixed through it, or in the toilet, and whether pain, constipation, diarrhoea, fever, weight change, or dizziness is present. Avoid straining, drink fluids, and keep stools soft unless a clinician has advised a restriction. Arrange a medical review for new or recurring bleeding. Assessment may include an examination, blood tests, or bowel tests; Polyp Removal may be discussed if a polyp is found.

Seek urgent care if bleeding is heavy or continuous, clots appear, you feel faint or unusually weak, your heartbeat is racing, or you have severe abdominal pain. Go promptly if bleeding occurs with black stools, repeated vomiting, fever, or marked abdominal swelling. A child, older adult, pregnant person, or someone taking blood-thinning medicine should receive tailored advice quickly.

Could the bleeding be from the anus or lower bowel? Do I need an examination or testing? Which symptoms should prompt emergency care? Could my medicines or bowel pattern be contributing?