There is a hard lump inside anus very painful how to return a responsibility

Anal abscess is usually

caused

by anal gland obstruction, infection, abscess, patients can consciously perianal swelling, lumps

, pain discomfort

, especially in the pressure, sitting more obvious.

3

, rectal cancer

rectal cancer is a malignant tumor of the human rectal mucosa, early usually no obvious symptoms, with the further development of the disease, can be manifested as anal pain, anal distension, bloody stools and other symptoms.