What are the consequences of anal fistula?

Long-term non-healing can be accompanied by defecation difficulties, anal stenosis, anemia, body weight, listlessness, neurasthenia and other symptoms; the existence of primary internal mouth, will continue to enter the pathogenic bacteria, fistula infection, often purulent, outflow secretions. Anal fistula if not treated, in the body will be repeated infection attacks, if the time is long, there are a small number of patients may appear cancer, although the probability is not particularly high, but there are literature or clinical reports, there is the possibility of cancer. If there is anal fistula, surgery as soon as possible, do not retain the hidden danger of cancer, if there is anal fistula itself, it also has a great impact on the quality of life.