Uncomfortable swollen area at the entrance to the anus
The anus is the opening at the end of your anal canal. The rectum sits between your colon and anus and acts as a holding chamber for stool. When pressure in your rectum becomes too great, the internal ring of muscle called the anal sphincter relaxes to allow stool to pass through your anal canal, the anus, and out of your body. The anus consists of glands, ducts, blood vessels, mucus, tissues, and nerve endings that can be highly sensitive to pain, irritation, and other sensations. Depending on the cause, a swollen anus can feel warm, cause sharp or burning pain especially after a bowel movement , and even produce bleeding and pus. Anal swelling can have a number of causes.
Anal pain is not something that is talked about a lot, though it can be quite significant. There are a lot of nerve endings in the area of the rectum and anus, so any issues with them can result in anything from mild discomfort to excruciating pain. Most of the time the causes of anal pain are benign, even if there is bleeding. Still, if your anal pain doesn't ease within a few days, it is essential that you get a proper diagnosis. While this might not be a conversation you're eager to have, it's an important one. Learn the most common causes of anal pain, when to see your doctor, and tips for self-care.
The anus is an opening in the lower part of the digestive tract. When stool fills the rectum, the sphincter muscle relaxes, letting stool pass through the anus and out of the body. The external anal sphincter closes off the anus when stool has passed. Lumps that form around the anus — for a variety of reasons — can cause it to feel hard. There may also be swelling, pain , and discharge.