Perianal abscesses are caused by purulent infections around the anal canal, with common causative organisms such as Escherichia coli. There are also associated factors such as diabetes mellitus. Perianal abscess is caused by an acute purulent infection around the anal canal. Common pathogenic bacteria are Escherichia coli, Staphylococcus aureus, etc., often mixed infections. Most of the perianal abscesses are caused by the infection of the anal glands, because of its opening in the anal sinus, and the opening of the anal sinus is upward, easy to retain fecal sludge and cause sinusitis, the infection spreads to the perianal skin and leads to perianal abscesses. At the same time, diabetes, anemia, perianal skin infections, sepsis and other diseases are risk factors for perianal abscesses. If you have symptoms of perianal discomfort, it is recommended that you go to a regular hospital in time for a relevant examination to clarify the cause of the disease and treat it as soon as possible to avoid aggravation of the infection, which will lead to adverse consequences.