Leukorrhea like water is clinically known as vaginal discharge phenomenon, the reason why this phenomenon occurs is often related to the following factors: firstly, cancer of fallopian tube leads to a large amount of watery secretion in the vagina, and this kind of secretion does not have bad smell, and often a lump in the lower abdomen will be found. Second, caused by endometrial cancer, endometrial cancer will lead to a large amount of plasma discharge, which is often accompanied by bad smell, so endometrial cancer must be excluded. Thirdly, due to cervical cancer, due to cervical cancer will lead to increased secretion, the secretion is like water, often accompanied by blood-like secretion, which should be highly valued, and it is recommended to do ultrasound examination and cervical cancer screening for this phenomenon, and handle it promptly according to the clinical results.