It is normal for menstruation to be early within one week each time. Since women’s hormones are affected by mental, emotional, and work stress, there may be slight fluctuations. There are the following reasons: First, due to the presence of luteal insufficiency, the corpus luteum atrophies in advance, more often seen in menopausal women. Second, women may suffer from gynecological diseases such as uterine fibroids and endometrial polyps, which may cause hormonal disorders and lead to early menstruation. If your period is early for more than a week, you should pay attention to maintain a regular life and avoid adverse effects such as stress in life. If you cannot be relieved after treatment, it is best to go to the hospital for gynecological ultrasound and sex hormone examination to see if hormonal disorders exist and hormonal drugs need to be given to regulate the cycle. If there are gynecological diseases such as uterine fibroids or endometrial polyps, it is necessary to actively give symptomatic treatment.