My husband has recently noticed a red bump near his anus, kind of on the right butt cheek. He says it's sore when he sits. No puss or blood has come out of it, but it's gotten bigger in the week he has had it. Any idea what it could be?
It is hard to say what the bump is without seeing it, but according to the information you provided (sore, red bump near anus which increased in size within the past week), your husband might be experiencing a perianal abscess.
A perianal abscess is an infection of the soft tissue surrounding the anus, which, in time, created a cavity full of pus (called an abscess). The infection occurs when certain anal glands are clogged and the glandular secretions cannot be expelled. When the inflammation starts, the secretions mix with the pus, which is a product of infection. In order to solve the abscess, the pus has to leave it. Surgeons make an incision and drain it. If this is not done one time, a perianal fistula might be formed when the pus leaves the abscess on its own. Please note that the fistula, if not treated on time, might develop epithelial tissue in the canal, making it more difficult for further treatment.
You might want to visit your family doctor for a physical examination. If s/he cannot either confirm or rule out a perianal abscess, then you might be referred to a surgeon, where a diagnosis would be given after a physical examination. If an abscess is diagnosed, then an incision and drainage are highly likely to be recommended. Antibiotics would be given to treat the infection and possible further complications.
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