The symptoms of anal cancer are not unique and are also symptoms of other conditions, such as hemorrhoids which include -
lumps or bumps located near the anus
anal bleeding or bleeding during bowel movements
pain in or around the anus
itchy sensation around or inside the anus
change in bowel habits, such as constipation, diarrhea and the thinning of the stools .
So the diagnosis can be made after a clinical examination by a colo rectal specialist .
It is typically found in adults, average age early 60s.
Other risk factor include smoking , HPV infection , anal sex ,inflammatory bowel syndrome .