Bleeding from the rectum is the most common symptom of anal cancer. But sometimes anal cancer does not cause any symptoms at all.
Other symptoms of anal cancer include:
Pain or pressure around your anus
Itching around your anus
Discharge from your anus
Bleeding from your anus
Swollen lymph nodes in your anal or groin area
A lump or swelling near your anus
Narrower stools
An increase or decrease in bowel movements
Loss of control of bowel movements (incontinence)
Many of these symptoms can be caused by other health problems. But it's important to see a healthcare provider if you have these symptoms. Only a healthcare provider can tell if you have cancer.