How did anus swell a circle do

The patient's anus is partially swollen. First, the patient should see a doctor in the anorectal surgery department for anal specialist examination, and anal digital examination and anoscopy to clarify the cause of anal swelling.

Secondly, if the patient's anus is partially swollen and painful, accompanied by a mass, the perianal color Doppler examination reveals that there is floc in the mass, and the possibility of perianal abscess is relatively large.

This situation does not require conservative treatment, and surgery must be performed to discharge pus. Moreover, it may be caused by internal hemorrhoids prolapse. This situation is also a serious stage of hemorrhoids, requiring surgical treatment.