Splenic cysts are verrucous cystic lesions of the splenic tissue, which can be clinically classified as parasitic or nonparasitic cysts. Parasitic cysts are most common in young and middle-aged people, while nonparasitic cysts are more common in adolescents. Smaller cysts, without any clinical symptoms, are often detected by ultrasound during physical examination. In contrast, when the splenic cyst is relatively large, it can compress and irritate the surrounding adjacent organs, manifesting as symptoms of organ compression. Complications of splenic cysts include rupture of the cyst, hemorrhage, and secondary infections, and patients may show signs and symptoms of peritonitis. Diagnosis of splenic cysts often relies on diagnostic imaging tests.