Pregnancy-induced cysts include luteal cysts or other cysts. Luteal cysts can disappear in 3 months after pregnancy, while other pathological cysts cannot disappear on their own and require medication or surgical intervention. Luteal cysts are physiological cysts in which a woman’s follicular fluid flows out after ovulation, the follicle collapses, and the original follicular structure gradually forms the corpus luteum. If the capillary wall ruptures and bleeds within the corpus luteum, a hematoma can be formed, which usually does not require treatment and can disappear in the first 3 months of pregnancy. However, some of the corpus luteum cysts gradually increase in size and can rupture or twist, in which case emergency surgery is required. For other pathological cysts, which cannot be absorbed on their own, and which are smaller and do not affect the growth and development of the embryo, they can be treated postpartum, otherwise they are treated in the third month after pregnancy, and if necessary, the pregnancy needs to be terminated. In conclusion, if cysts are found after pregnancy, ultrasound or other tests should be performed in the hospital to clarify their nature and then decide the treatment.