Half a month after splenectomy, there is still yellow fluid flowing, which may be caused by subphrenic infection, pancreatic leakage, pleural effusion and other postoperative complications, which should be drained and the infection should be controlled. 1. Sub-diaphragmatic infection: effective drainage should be ensured by sub-diaphragmatic tube or incision and drainage, etc. Meanwhile, it is necessary to choose sensitive antibiotics for infectious organisms to control the infection. 2. Pancreatic leakage: antibiotics can be used to control the infection, and at the same time, it is necessary to drain, provide adequate nutritional support, fasting, gastrointestinal decompression to reduce the secretion of pancreatic fluid. 3. Pleural effusion: when the effusion is small, antibiotics such as cefuroxime and ciprofloxacin can be used intravenously to control the infection; if the effusion is too much, besides controlling the infection, puncture and aspiration should be performed. Complications occur in 1~2 cycles after splenectomy, vital signs should be continuously monitored and drainage should be closely watched.