Pathological corpus luteum cysts ultrasound manifestation of cystic, cystic solid and solid masses in the ovary, some of the periphery of the cysts can be seen as typical ring or semi-circular blood flow, corpus luteum blood flow usually appears 1-2 days after ovulation, peaks about a week, the spectrum shows low resistance to blood flow. The early stage of cysts can be manifested as round or oval, with thin cyst wall and fine dot-like echoes within the cyst; solid components can be seen after the formation of hemocoagulation, with strong echoes predominantly, irregular surface, and no blood flow signals inside; most of them form cystic solid masses, and the strong echoes gradually become weaker when hemocoagulation is dissolved, and network-like, cloudy, or flocculent echoes can be formed. If a pathologic luteal cyst ruptures and causes hemorrhage, ultrasonography reveals the presence of fluid dark areas in the pelvis. In addition to ultrasonography, magnetic resonance imaging (MRI), posterior vaginal fornix puncture, CT, and laparoscopy are also necessary for this condition. Usually, pathologic luteal cysts require treatment, while physiologic ones do not require treatment and may disappear on their own. To summarize, patients with luteal cysts need to go to the hospital for follow-up on time and cooperate with the doctor for active treatment if necessary, so as to avoid delaying the condition.