Perimenopausal women may ovulate, but may also not ovulate due to reduced ovarian function. Perimenopausal women may ovulate due to hormonal stimulation because ovarian function is still present and follicles are still active, but due to reduced ovarian function and hormone levels that are not as normal as they were before, there is a chance that they will not ovulate, and even if they do, the quality of the eggs is generally poorer. It should be noted that due to the uncertainty of ovulation, it is recommended that women in perimenopause try to use contraception when having sex to avoid irreversible damage caused by unwanted pregnancy. If the patient really wants to know whether she will ovulate again, it is recommended that the patient go to the hospital in time to improve the ultrasound and other tests before ovulation.