Abnormal female physiological periods can affect fertility, which requires a doctor’s judgment based on test results. The most common causes of irregular physiological periods include the following: 1. Irregular physiological period caused by endocrine dysfunction, which is most commonly caused by polycystic ovary syndrome, pituitary gland dysfunction, ovary dysfunction and other endocrine system diseases, and this condition may affect fertility. 2. Diseases of the uterine lining, most commonly due to endometritis, which may also lead to infertility. 3. Fibroids and other lesions, which may also lead to infertility. 4. late nights, excessive weight loss, etc. This condition usually does not affect fertility after the cause is corrected. Therefore, if a woman’s physiological period is not normal, she needs to go to the hospital for a systematic examination, and then give positive treatment according to the cause.