
What Causes Anal Bleeding After Defecation?

hemorrhoids and trauma most common causes of blood on wiping
Detailed Answer:
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The most common cause of blood on wiping after a bowel movement is hemorrhoids but other causes should be considered as well.
It is possible that blood can also be seen from trauma to the anus from the bowel movement or due to insertion of the fleet enema.
If you've had a recent colonoscopy (within the last few years) then this makes colon cancer unlikely.
Colonoscopy are normally recommended every 8 to 10 years (if normal) because the cancer can be slow growing so does not need to be done more often (unless family history of colon cancer).
If you have not had a recent colonoscopy or any imaging of the bowel then you should consider visiting your doctor for assessment though trauma or hemorrhoids are more likely.
Even though these are more likely, more serious causes should always be ruled out.
Other causes are: anal fissure (cut in the anal region), diverticular disease, infection, benign (non cancerous ) growths, inflammatory bowel disease (ulcerative colitis or crohns)
Summary: (1) hemorrhoids or trauma most likely cause
(2)if had recent colonoscopy no further investigations needed
(3)if no recent tests, then should be considered
I hope this helps, feel free to ask any other questions

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