Watery leukorrhea without odor may be a normal physiological phenomenon, may also be due to disease caused by abnormal phenomena, it is recommended that women go to the hospital gynecology, under the guidance of the doctor for routine leukorrhea, gynecology, ultrasound, CT and other tests to clarify the diagnosis, and treatment of the cause. First, physiological phenomenon: usually women in the ovulation and menstruation will appear before the amount of leukorrhea will increase, watery, not accompanied by odor. This is because estrogen secretion reaches its peak during ovulation and pelvic congestion before menstruation, which is a normal phenomenon and does not require special treatment. Pathological phenomenon: 1, fallopian tube tumor: there is no symptom in early stage, when the lesion develops, vaginal discharge can appear, which is yellow watery liquid, sometimes serum-like, without odor, the amount varies, and the discharge is intermittent. Surgery, radiotherapy, chemotherapy and other treatment methods can be adopted, and commonly used surgical methods include tumor cell reduction surgery, lymph node dissection, etc. 2. Endometrial cancer: in the early stage, it can be manifested as thin white secretion or a small amount of bloody leucorrhoea, which is usually odorless, and with the progression of the disease, there can be purulent secretion accompanied by peculiar smell when it is combined with infection. Treatment is based on surgery, supplemented by radiotherapy and chemotherapy to improve the patient’s prognosis. Precautions in daily life, women should pay attention to sexual life and menstrual hygiene, change underwear frequently, wash the vulva with warm water every day, keep the vulva clean and dry, and prevent the occurrence of infection. If the symptoms of watery leukorrhea persist, women are advised to go to the hospital in time to find out the cause of the disease and be treated according to the test results.