There is a lump growing in the anus, consider the following possibilities. First, it may be suffering from hemorrhoids, most of which are caused by the patient’s irregular diet and living habits. Especially in severe cases, there may be a lump-like object in the anal area, enlargement, pain as well as blood in the stool, etc., which requires timely medication or surgery. The second is probably due to the infection of human papillomavirus caused by the warts, which will appear in the anal area pimple-like objects, itching, infectious, pain during sex, etc. The third is probably due to anal eczema, which can be caused by a series of skin bumps, itching and flushing of the base, etc. After scratching, there will be liquid leakage. In addition to the above-mentioned cases, there may be other perianal diseases such as perianal inflammation. It is best to go for a checkup and then target treatment afterwards.