Anal Cancer:

The symptoms of anal cancer are not unique and are also symptoms of other conditions, such as hemorrhoids. Although anal cancer is relatively simple to diagnose, this can cause a delay in diagnosis for those with anal cancer.
Symptoms of anal cancer include:
lumps or bumps located near the anus
anal bleeding or bleeding during bowel movements
anal discharge
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 What to Do If You Have Anal Cancer SymptomsIf you are experiencing the symptoms of anal cancer, please see your doctor. It is common for some to delay going to the doctor, because they feel embarrassed by anal symptoms or are fearful of being examined in such a private place. Please don't let these emotions prevent you from being examined by a doctor. Fortunately, anal cancer can be detected early on if the patient seeks medical care at the onset of symptoms.