Finding a lump on any part of your body can be alarming, but try not worry. If you've found a small and often dark or black coloured lump on the outside or your anus that looks a bit like external piles , it is most likely a perianal haematoma. A perianal haematoma can be distinctly uncomfortable, and may leave you feeling worried or embarrassed, as well as in pain. A perianal hematoma is a blood blister that collects in the tissue surrounding the anus, similar to when you trap or hit your thumb with a hammer. It is usually caused by a ruptured or bleeding vein that occurs when the bowels are opened, and it only occurs on the outside of the anus, as opposed to being an internal issue. It can also be painful, particularly when passing a stool.
What Causes an Anus to Become Hard? Causes and Treatment
Anal Disorders - Harvard Health
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. Nodules and cysts tend to be the most painful kinds of pimples. A typical pustule may itch and have a rough tip.
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.
Skip to content. Most lumps and swellings under the skin are harmless and can be left alone. However, see your GP if you develop a new lump or swelling so that the cause can be identified.