Whether or not it is normal for your period to drag on for seven days has to be compared to your usual menstrual cycle. If the menstrual cycle is usually seven days delayed and regular, it can be considered normal. If the menstrual cycle is usually constant, and suddenly the menstrual cycle is delayed for seven days, then it is not normal, and it is considered to be related to endocrine disorders, pregnancy, etc. It is recommended to consult a doctor in time to clarify the condition and take targeted treatment. Do not use your own medicine, so as not to delay and aggravate the condition. 1. Normal situation: the menstrual cycle is usually about 28 days, 21 to 35 days is the normal range, for the menstrual cycle has been extended seven days of women, that is, about 37 days, very regular, it is considered normal. 2. Abnormalities: (1) Pregnancy: for women of childbearing age who have normal sex life, the first thing to be alerted to after delayed menstruation is the occurrence of pregnancy, which will lead to menopause. (2) Endocrine disorders: If the patient has recently suffered from high work pressure, major blows or gynecological endocrine diseases such as polycystic ovary syndrome, due to the patient’s irregularity of ovulation, her menstrual cycle is also irregular, sometimes ahead of time, sometimes pushed back, and also combined with an increase or decrease in the amount of menstruation. For women with delayed menstruation, it is recommended that they go to the gynecology department of a regular hospital for a complete examination of blood HCG, gynecological ultrasound, sex hormones and other related tests, so as to clarify the cause of the disease and then actively treat it under the guidance of the doctor.