If the panties are wet like water, and there is a bad smell, the most common cause is due to anaerobic bacteria infection caused by bacterial vaginosis, it will be manifested as a large number of relatively thin secretions out, and the vulva always feel wet, will be accompanied by a great fishy odor, in the clinical laboratory examination can often be clearly diagnosed, you can use metronidazole or tinidazole to give the appropriate treatment, the symptoms will be The symptoms will soon be relieved. If the laboratory test for bacterial vaginosis is negative, it is recommended to exclude the possibility of cervical and endometrial cancers, and screening for cervical cancer can be done. If cervical cancer screening is not a problem, endometrial examination, such as diagnostic curettage, can be performed to rule out endometrial cancer, and appropriate treatment can be given in the clinic.