Diocese of Wau Health Coordinator has confirmed the successful fistula campaign which was done in Comboni Hospital by voluntary doctors from Germany and other African countries.
Catholic Health Advisor Dr Jurel Payii says 20 patients were operated.
He says without operation, fistula can lead to psychological problems.
One of the patients urges people suffering from fistula to come to the hospital for examination and operation.
She says she is happy because she is well again.
After the successful operation, all patients are still under medical care.