It is usually normal for your period to be 5 days early. The normal menstrual cycle is 21-35 days, and it is normal for menstruation to be 5 days early or late. Menstruation is affected by the hormone level in the body and the cycle changes. Menstruation is also affected by various factors such as environment, emotion, diet, endocrine, etc. It is common to have early or late periods. If the period is normal and the volume of menstruation is normal, no special treatment is needed. If the period is often early and gradually exceeds 5 days, it is considered that the ovarian function is declining and the hormone 6 test is needed. In addition, some organic diseases, such as fibroids, endometrial polyps, endometrial cancer, cervical cancer, etc., may also cause disorders of the menstrual cycle. Therefore, if you have early or late menstruation, you need to do the appropriate gynecological examination to identify it. Therefore, 5 days early menstruation is usually normal. If it is more than 5 days, you need to go to the hospital for a detailed examination to rule out other problems.