I m having bleeding after anal sex.. is dat normal?

Not unusual: If blood is bright red, it may suggest a hemorrhoid rupture. If you have burning pain and bleeding, get checked for a tear or fissure in the rectal mucosa. Warm bath should alleviate minor irritation in 1-2 days.

It means trauma: Anal receptive sex can cause tearing of anal tissues including perforation of the colon. Repeated anal sex can weaken the anal sphincter muscle & cause problems with incontinence. It can also lead to transmission of sexually transmitted diseases and other infections.