Girls usually come to their aunt's house for a few days under normal circumstances

The menstrual period for girls usually lasts for 3-7 days, and the specific time is affected by hormone levels, endometrial thickness, physical differences, mental stress, and disease factors.

1. Hormone levels:

The menstrual cycle is regulated by estrogen and progesterone. Estrogen during the follicular phase promotes endometrial thickening, while progesterone during the luteal phase maintains endometrial stability. If hormone secretion is imbalanced, such as insufficient luteal function, it may lead to a shortened menstrual period of less than 3 days, while excessive estrogen may prolong it to more than 7 days. Adolescent and perimenopausal women are prone to changes in menstrual duration due to significant hormonal fluctuations.

2. Endometrial thickness:

Normal shedding of the endometrium takes 5-7 days to complete. If the endometrial thickness is less than 8mm, it may end in 2-3 days and is commonly seen in multiple miscarriages or intrauterine adhesions; Endometrial thickness greater than 12mm may last for more than 7 days and is often associated with lesions such as uterine fibroids and endometrial polyps. Ultrasound examination can visually evaluate the condition of the endometrium.

3. Physical differences:

Women who are thin have a lower basal metabolic rate and their menstrual period usually lasts for 5-7 days; People with high muscle mass have faster metabolism and higher efficiency in menstrual blood excretion, which lasts for 3-5 more days. In the classification of traditional Chinese medicine constitution, qi deficiency constitution is prone to prolonged menstrual period, while blood stasis constitution may be accompanied by dysmenorrhea and poor menstrual flow.

4. Mental stress:

Long term anxiety can inhibit hypothalamic function, leading to disorders in the secretion of gonadotropins. During the exam season or high-pressure work period, menstrual periods may be shortened to 2-3 days or extended to more than 10 days. Elevated cortisol levels can exacerbate premenstrual syndrome, manifested as breast tenderness and increased emotional fluctuations.

5. Disease factors:

Patients with polycystic ovary syndrome may experience 2-3 menstrual cycles combined with ovulation disorders, leading to prolonged periods; hypothyroidism can cause infrequent menstruation, while hyperthyroidism may lead to frequent menstruation. Endometriosis is often accompanied by severe dysmenorrhea and prolonged menstrual periods of more than 10 days.

It is recommended to avoid vigorous exercise and cold eating during menstruation, and to supplement iron containing foods such as animal liver and spinach in moderation to prevent anemia. Record the menstrual cycle and symptom changes daily. If it lasts for less than 2 days or more than 10 days, or is accompanied by a large number of blood clots larger than the size of a coin or severe abdominal pain, gynecological ultrasound and six hormone tests should be performed. Perimenopausal women who suddenly experience prolonged menstrual periods should be alert to endometrial lesions, and it is recommended to undergo a combined TCT and HPV screening every year.