After surgery for a stomach fistula from an abscess, a tummy tuck should wait until the infection and fistula are fully resolved, the wound has healed, and your general surgeon or GI surgeon has cleared you for elective abdominal surgery. This is not a situation where a fixed number of weeks is enough. In many patients, waiting at least 6 to 12 months is more realistic, and sometimes longer if there was significant infection, drains, poor nutrition, weight instability, or complicated scarring. Before a tummy tuck, your plastic surgeon may need records or imaging to understand the fistula history and any adhesions or hernia risk. Safety, nutrition, stable weight, and a healed abdominal wall matter more than rushing the cosmetic procedure.