hi, a swollen lump besides the anus is mainly due to a small bleeding under the skin which is called a perianal hematoma or it is due to a pus bag called as an abscess. As you donot have pain, it seems less likely to be pus. Just observe it for a few days, if it grows in size or pains or bursts then you have to consult at colon rectal surgeon & proctologist. For the time being you can sit in tub of warm water (no need to add any medicines to it) for 10 min after every motions and also apart from ...
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