Brown discharge a few days before menstruation can be caused by bleeding, luteal insufficiency, cervical erosion, endometritis and other factors.
1. Bleeding: when you are in the ovulation period before your period, the level of estrogen in the female organism is decreasing, and a small amount of bleeding can occur, which can be attached to the leukorrhea and discharged from the body, and a brown discharge can occur.
2. Luteal insufficiency: premature degeneration or underdevelopment of the corpus luteum can lead to a decrease in the secretion of luteinizing hormone, which can cause irregular shedding of the endometrium, and a small amount of bleeding can occur before the menstrual period, resulting in the appearance of brown discharge.
3. Cervical erosion: the presence of cervical erosion and other diseases, can be accompanied by contact bleeding, if the gynecological examination a few days before menstruation or sexual intercourse, can cause vaginal bleeding, the emergence of brown discharge.
4. Endometritis: When gynecological diseases such as endometritis occur, the endometrium may undergo shedding, necrosis, edema and congestion, etc., which may be accompanied by a small amount of bleeding, and necrotic material mixed with blood outflow may be manifested as brown discharge.
Brown discharge a few days before menstruation should be early medical treatment, under the guidance of specialists to actively carry out appropriate treatment, help early relief of uncomfortable symptoms.