Does anal fistula surgery affect the sphincter?

Whether anal fistula surgery will affect the sphincter muscle mainly depends on the location of the internal opening. The location of the internal opening is superficial, and after basic resection does not affect the sphincter; the location of the internal opening is high, and the sphincter is easily involved in the surgical process, affecting the corresponding function.
The location of the fistula is superficial, the location of the internal opening is relatively low, far from the sphincter, the operation is less likely to affect the sphincter.
The deeper the location of the anal fistula, the location of the inner mouth is higher, close to the sphincter, in the process of surgical removal or treatment, it is easy to damage the sphincter, thus affecting the corresponding function.
The sphincter function is damaged will affect the anal contraction and diastolic function, so that the defecation condition is abnormal, may appear incontinence, etc. Need to go to the hospital in time to check, clear diagnosis, in the clinic under the guidance of professional doctors, give reasonable treatment.