Diseases
rectal fissure
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Overview
An anal fissure is a small tear in the thin, moist tissue that lines the anus. The anus is the muscular opening at the end of the digestive tract where stool exits the body. Common causes of an anal fissure include constipation and straining or passing hard or large stools during a bowel movement.
Symptoms
- pain during bowel movements.
- pain after bowel movements that can last up to several hours.
- bright red blood on the stool or toilet paper after a bowel movement.
- a visible crack in the skin around the anus.
- a small lump or skin tag on the skin near the anal fissure.
Causes
- passing large or hard stools.
- long-lasting diarrhea.
- constipation and straining during bowel movements.
Risk factors
- constipation
- childbirth. anal fissures are more common in women after they give birth.
- crohn's disease.
Diagnosis
- physical exam.
- medical history.
- anoscopy
- flexible sigmoidoscopy.
Medicines used
Frequently asked questions
What is rectal fissure?
An anal fissure is a small tear in the thin, moist tissue that lines the anus. The anus is the muscular opening at the end of the digestive tract where stool exits the body. Common causes of an anal fissure include constipation and straining or passing hard or large stools during a bowel movement.
What are the symptoms of rectal fissure?
pain during bowel movements., pain after bowel movements that can last up to several hours., bright red blood on the stool or toilet paper after a bowel movement., a visible crack in the skin around the anus., a small lump or skin tag on the skin near the anal fissure.
What causes rectal fissure?
passing large or hard stools.; long-lasting diarrhea.; constipation and straining during bowel movements.
Which medicines are used for rectal fissure?
nitroglycerin
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