The cause of ovarian cysts is unclear, with many factors that can lead to ovarian cysts. The most common type of physiological ovarian cyst is the follicular cyst. The most common pathological causes are chronic inflammation or abnormalities in hormone secretion and endocrine factors, but most causes are unclear. If an ovarian cyst is discovered, it is recommended to regularly check with a color Doppler ultrasound, which is a common gynecological test for tumor markers. If the results are abnormal, timely surgical treatment is recommended to more directly understand the nature of the ovarian cyst. If the cyst is smaller than five centimeters in diameter and has good internal sound transmission, it can be observed regularly; otherwise, aggressive surgical treatment is advised.