Multiple cystic shadows are seen in the splenic parenchyma and a splenic cyst is considered. The clinical etiology is not yet clear, and is usually due to the following reasons. 1. Congenital developmental anomalies, which can lead to splenic cysts in the spleen, within which body fluids are usually accumulated. 1. Parasite infestation of the spleen leading to cystic degeneration of the spleen. When the parasite enters the body through food, injection and other reasons, it is transferred to the spleen through the bloodstream in the body, and the parasite settles in the spleen, and an encapsulated cyst is formed. 2. Abnormal metabolism in the spleen leads to the formation of pseudocavity in the spleen, abdominal fluid accumulation or long-term chronic inflammation in other tissues and organs in the abdominal cavity, which leads to the adhesion of encapsulated fluid around the spleen. In addition, abdominal trauma, splenic rupture and bleeding can also lead to the appearance of splenic cysts. It is recommended to visit the hospital as soon as possible for any related problems to avoid delay.