Brownish leucorrhea can be caused by pre-eclampsia. Further examination of gynecological ultrasound, blood HCG and progesterone is needed, and symptomatic treatment is needed to stop the bleeding, usually by oral treatment with fetus preservation capsules and vitamin E. For patients with low progesterone, progesterone supplementation is needed. At the same time, sexual intercourse should be prohibited and rest should be paid attention to, and it is best to rest in bed. Brownish leukorrhea can also be caused by uterine scar diverticulum, which requires gynecological ultrasound. If the gynecological ultrasound indicates that the formation of uterine scar diverticulum may affect the patient’s normal life, further surgery is needed. It can also be caused by endometrial polyps and requires further gynecologic ultrasound. If the gynecological ultrasound indicates the formation of endometrial polyps may be formed, further hysteroscopy is needed to clarify the diagnosis.