Perianal abscess cannot heal itself. Perianal abscess can be short term without attack, and symptoms of redness, swelling, heat and pain can not appear, such as maintaining for 1 month, 3 months, 6 months or even 2-3 years. But it is impossible for perianal abscess to heal completely, because the cause from perianal abscess is the source of infection in the anus, and the source of infection in the anus is not cured and not removed by therapeutic surgery, which is always a time bomb for outbreak of disease. This period is not manifested though and is in a resting period. It will appear during exertion and irritation of anal glands. And patients should be aware that perianal abscess is sometimes from the surface around the anus can manifest redness, swelling, heat, pain, while part of the cavity in the anus, such as the posterior rectal space, the pelvic rectal space, where the abscess is an occult abscess. Instead of manifesting along the anal epidermis, the infection develops along the submucosa of the rectum or the deep posterior rectal space toward the pelvis and other directions, which is not easily detected at this time, and even the doctor’s diagnosis can be missed. Therefore, although perianal abscesses are in a quiescent stage, such as redness, swelling, heat and pain are relatively mild, some treatment is still necessary.