The anus usually consists of soft tissue. However, this tissue can become hard due to infections and other medical conditions, many of which range in severity. When this happens, it may feel as though there is a hard lump in the area. The anus is the opening at the lower part of the digestive tract, where stool exits the body. It connects to the rectum, which stores stool before passing it.

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Pimples tend to be skin problems most associated with the face, though they can form on your back, pubic area, and just about anywhere on the body — including the anus. That can lead to infection and other complications. The bump you feel may also be a different health concern, including a hemorrhoid or a cyst that will require treatment by a healthcare professional. There are different types of pimples, including pustules , which are small raised pink or red bumps that contain pus. Larger papule -like bumps embedded in the skin are called nodules , while larger, pus-filled lumps are called cysts.

Anal cancer is a type of cancer that forms in tissues of the anus. The anus is the opening of the rectum to the outside of the body and at the end of the GI tract. Sometimes anal cancer causes no symptoms at all.

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