There is a tumor in the anus and pain can be caused by hemorrhoids, anal fissure, perianal abscess, sebaceous cysts and other factors. 1. hemorrhoids: hemorrhoidal block occurred in the acute thrombotic embolism, the anus can appear intense pain, but also in the local touch hemorrhoidal block, that is, there is a tumor in the anus performance. 2. Anal fissure: anal fissure is a small ulcer formed after the anal canal skin layer is cracked, when the anal fissure has a long course and the injury is not healed, a swelling can be formed in the anus and accompanied by pain symptoms. 3. Perianal abscess: Perianal abscess is mainly caused by the infection of anal glands, tumor-like abscess can be touched in the anus, and severe pain, swelling and other symptoms can occur locally. 4. Sebaceous cysts: cysts can be formed after the sebaceous glands in the anus are silted up, which can be manifested as a tumor in the anus. Repeated squeezing of the cyst can easily lead to bacterial infection, which can lead to painful symptoms. When there is a tumor and pain in the anus, it is necessary to consult a doctor in a timely manner, under the guidance of specialists to actively carry out appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.