My multiple surgeries were for a perirectal abscess. After eleven surgeries over a two-year period, and no improvement, I was sent to a specialist, who said it was an anal fistula. This was also a misdiagnosis. After five surgeries, over a one-year period, to remove the anal fistula, that wasn't improving, I requested and got an MRI of the pelvis without and with contrast. It was then that the specialist determined I had an extreme horseshoe fistula. Every time they would drain a pocket or perform a fistulotomy surgery, a new tunnel would form. Using the MRI as a map, It took two more surgeries, that included removing half the exterior external anal sphincter muscle, it was finally over. I do occasionally get infections that can be treated with oral antibiotics, about once every two to three years.
When I say it wasn't improving, I could tell that it wasn't, but with each procedure, and post-op doctor appointments, each surgeon thought it was a success. All that happened is the surgery site would heal externally, but the abscess would reform, caused by the infection by the misdiagnosed extreme horseshoe fistula.