Anal fistulae are not life-threatening in general.
However, for the elderly, weak, immunocompromised patients, also with other organ diseases, may affect the life expectancy
Because anal fistula memory alive a large number of bacteria, easy to repeated infections, pus from the outer mouth, if the outer mouth blockage will form abscess, if bacteria or toxins into the bloodstream, will make the original disease aggravated, easy to cause bacteremia or sepsis, etc., and even lead to multiple organ failure, serious can cause infectious shock.
Anal fistula is generally rarely self-healing, if not treated in time will recur, and even lead to rectal, perianal abscess or even cancer. Therefore, once diagnosed with anal fistula, need to go to the regular hospital anorectal department in a timely manner, after a clear diagnosis, under the guidance of professional clinicians, actively cooperate with the treatment, to avoid delays in the condition.