Sickle ligament cyst 1.7 centimeter abdominal distension can be treated by cyst puncture, sclerotherapy injection, or surgical removal. Specific treatment options should be chosen under the guidance of a doctor. 1. Cystocentesis: Sickle ligament cyst 1.7cm abdominal distension, belonging to a relatively large cyst, can be treated by cystocentesis under ultrasound guidance to extract the fluid in the cyst to achieve the therapeutic purpose. 2. injection of sclerosing agent: injection of sclerosing agent can be taken to treat the cyst, such as anhydrous alcohol, sodium cod liver oil, ethyl sclerosanthenol and so on. 3. Surgical excision: if the treatment of cyst puncture, injection of sclerosing agent is ineffective or the effect is not obvious, surgical treatment can be carried out, such as cyst windowing, cyst drainage, cyst excision and so on. All of the above medications should be used under the guidance of a doctor, avoid self-medication. If symptoms of infection occur, it is recommended to go to the hospital in time for early and regular treatment.