The appearance of acne on the face before menstruation may have some relationship with the endocrine hormones in the body. The progesterone may be strong after ovulation, which may cause acne on the face, but it will slowly return to normal after menstruation. If you have oily skin and do not pay attention to facial cleansing, it may also cause acne. If this is very frequent, it is advisable to check the endocrine hormones on an empty stomach on the second to fifth day of your period to see if there are any abnormalities. If there are no major problems, it will not affect your health, so pay attention to your face cleanliness. If there is an endocrine hormone abnormality, you can take some oral medication to regulate the cycle according to the situation, which will help the disease to get better quickly and will not affect your health.