Lymphatic cysts are one of the most common diseases in clinical practice. Depending on the size and location of lymphatic duct cysts, the treatment methods adopted vary. First, for small intra-abdominal or superficial lymphatic duct cysts, close observation is mostly used because smaller lymphatic duct cysts do not cause obvious pressure symptoms on the body and do not affect the reflux of lymph nodes. It is recommended to review ultrasound or CT in 2-3 months to closely observe the changes of lymphatic duct cysts. Secondly, if lymphatic duct cysts are found to gradually increase in size during the review, or if lymphatic duct cysts in the abdominal cavity compress the surrounding intestines and organs, and if superficial lymphatic duct cysts block the lymphatic return flow and cause swelling of the limbs, early lymphatic duct cyst excision is recommended to avoid serious complications.