What are the clinical signs of early onset of anal fistula? The early onset of anal fistula is a perianal abscess, which is caused by bacteria trapped in the anal sinus and is characterized by painful perianal swelling with fever. The inflammation here spreads toward the anus and becomes septic, resulting in severe pain and high fever. When pain unrelated to defecation starts to appear around the anus, it is mostly caused by perianal abscesses. The cause is the presence of bacteria in the anal sinus above the anodontic line. Bacteria from the anal sinus retrogradely infect the anal glands through the anal gland ducts causing perianal abscesses. The inflammation can spread up and down the dentate line. The inflammation spreads downward and pus forms a perianal abscess. From the appearance of the skin with pus storage is red and hot. At this point, not only can you not make a chair, but even touching it can cause pain and sweating. Further development of inflammation can lead to high fever of 38-39 degrees, and patients report that they are afraid of cold and dry mouth, and their body temperature rises again the next day after a few hours of fever, and after the fever subsides, they sweat a lot and their underwear can be soaked. The pain, combined with severe systemic symptoms, significantly reduces the patient’s physical strength. Perianal abscess: If we go back to the root of the problem, we can say that perianal abscess is caused by infection of the anal glands. Emergency treatment of perianal abscess: Most of the pain of hemorrhoids can be reduced by applying heat, but perianal abscess should never be applied with heat, because heat makes the capillaries dilate and congested, but aggravates the pain. A cold towel applied to the perianal area can remove the fever and relieve the pain. In case of perianal abscess, it is best to go to the hospital immediately and ask the doctor to deal with releasing the pus. Almost all perianal abscesses transform into anal fistulas, the symptoms of which are repeated pus flow around the anus accompanied by fever and pain. After the thick juice is drained the perianal abscess comes to a temporary end and the patient’s pain is relieved, but do not be overjoyed, as almost all abscesses formed around the anorectum develop into anal fistulas in adults. Such patients must pay attention to late treatment. The so-called anal fistula is a sinus tract in which pus has formed. As mentioned earlier, the anal sinus is the entrance to the lesion, and its morphological characteristics make it easy for feces to accumulate. After the inflammation has subsided, the inflammation is likely to recur because of the accumulation of feces again and the large amount of bacteria in the feces. In this way, the inflammation is repeated, abscesses are formed, pus is discharged, and repeatedly, pus can be discharged from the original mouth, or another path can be found, and multiple sinus tracts are formed repeatedly, and in severe cases, the area around the anus is like a large tree root.