The flow of white fluid without menstruation may be caused by physiological factors or pathological factors such as vaginitis and non-gonococcal urethritis. A. Physiological factors 1. Pregnancy: If the future of menstruation and white discharge is relatively more, no odor, vulvar itching, etc., it may be pregnancy. You can go to the hospital to draw blood to test the blood HCG, or use the early pregnancy test paper to check whether the pregnancy test is pregnant. If you are pregnant, you need to pay attention to rest, don’t work too hard, pay attention to nutritional balance in your diet, and forbid to have sex; 2. Pre-menstrual signs: white fluid will also appear before menstruation in the clinic. Due to the endometrial glands secretion, resulting in increased leucorrhea, which is a normal physiological phenomenon. You need to pay attention to local hygiene and cleanliness and change clothes regularly; 3. Environment: If you have reached the normal menstrual period, your period has not come normally and the amount of leucorrhea has increased, it may be caused by cold or food stimulation and you need to pay attention to keeping your abdomen warm. Second, pathological factors 1, vaginitis: such as bacterial vaginitis, mycotic vaginitis, etc. Bacterial vaginitis has fishy smelling grayish white leucorrhea, mycotic vaginitis leucorrhea is white, usually very thick, beanbag-like or milk clot-like. Bacterial vaginitis can be treated with topical metronidazole suppositories and mycosis can be treated with clotrimazole vaginal suppositories. During the treatment period, you should not have intercourse and do not use lotions indiscriminately, which can easily cause dysbiosis. 2. Non-gonococcal urethritis: usually caused by infection with mycoplasma and chlamydia, manifested as white thin-like liquid flowing from the urethra, accompanied by discomfort such as frequent urination, urinary urgency, itching and pain in the urethra. The clinical treatment is generally preferred to tetracyclines, and the patient’s sexual partner should also be examined at the same time during treatment, and if necessary, synchronized medication can be used.