Males do not have the corpus luteum, which is a structure that forms after the ovaries are ovulated in females. The corpus luteum is primarily a cyclic changing structure of the ovary, as normal males do not have this structure of the ovary. Therefore, there is no corpus luteum in males. Usually before menstruation, after ovulation, a woman’s body is in the corpus luteum phase, which then promotes a constant rise in progesterone in the woman’s body. At this time, the stimulation of progesterone will cause the uterine lining to thicken, which will help the fertilized egg to bed, and be able to prepare for the development of the fetus. In addition, progesterone secreted by the corpus luteum and estrogen secreted by the ovaries also help promote the development of female breasts. At the same time, it can also maintain the normal development of the fetus and play a role in protecting the fetus. In case of abnormalities of the corpus luteum, you should go to the hospital immediately and follow the doctor’s instructions for treatment.