The sagging sensation in the anus is generally considered perianal inflammation, especially related to perianal abscess, hemorrhoids, rectal polyps, tumors and other factors, it is recommended that it is best to go into the hospital for examination to determine the lesion for symptomatic treatment. If you have a perianal abscess, you will also have a lump around the anus, pain, fever, fluctuating sensation and other symptoms, so we suggest surgical incision and drainage and anti-inflammatory treatment; if you have a perianal abscess, you should avoid constipation and other conditions that cause increased abdominal pressure. Patients with polyps and rectal tumors are best treated surgically.