How does a perianal abscess wound heal and then split open?

Perianal abscess wound healing and cracked, there are many reasons, the more common reasons are dry stool, wound infection, wound pseudo-healing, the formation of anal fistula, etc., need to go to the hospital to improve the examination, clear cause.
1. dry stool: due to the usual diet used to eat spicy and stimulating food, low fiber diet, etc., living habits usually less exercise, resulting in dry, hard, coarse stool, in the perianal abscess wound healing, dry stool through the anus, resulting in wound cracking.
2. Wound infection: when the wound of perianal abscess is infected, although the wound is healed, there are redness, swelling, pain, pus and other manifestations, and the wound is still prone to crack when defecating.
3. False healing: due to the usual improper change of medicine, resulting in the wound surface skin healing, but there is an internal cavity, in fact, the wound is not completely healed, so in the role of external forces, can still appear to crack the situation.
4. anal fistula formation: in the surgery is not complete, perianal abscess can develop into an anal fistula, in addition to the formation of fistula, there is also the inner mouth, the outer mouth, especially the outer mouth is easy to break again, and there can be pus secretion repeatedly outflow.
In summary, the specific situation is recommended to go to the hospital, improve the examination, need to professional physicians for specific reasons, give the appropriate treatment.