Pancreatic fistula is a common complication of acute and chronic pancreatitis after surgical treatment, which can affect the patient’s digestive and absorption functions and even cause malnutrition. Most patients with pancreatic fistula may heal on their own, but the specific time to heal will vary depending on the patient’s condition. Some patients have low-flow pancreatic fistulas, which can heal on their own in about 80 days, while others have high-flow fistulas, which take a relatively long time to heal, usually about 100 days. Therefore, after the phenomenon of pancreatic fistula, it can be observed for about 3-6 months, once the patient has not closed for more than 6 months, you should consider surgery, or medication, and some patients can also be drained to promote the healing of the disease.