The secretion is yellow and watery, it can be clarified which part of the secretion is first. Vaginal secretion may be caused by gynecological diseases, while ear canal secretion, trauma wound secretion or perianal secretion may be related to skin infection, it is recommended to clarify the cause and treat the cause. I. Gynecological diseases 1. Vaginal inflammation: such as trichomonas vaginalis, foamy, thin yellow-green or yellow-white discharge, bacterial vaginosis is seen as a uniform and consistent amount of thin leucorrhea. Local medications are recommended, such as metronidazole and clindamycin. 2. Cervical or endometrial inflammation: If there is acute inflammation of the cervix or endometrium, there may be a large, purulent discharge that appears yellow and watery. Cephalosporin antibiotics are usually used for treatment, and the principles of medication are empirical, broad-spectrum, timely and individualized. 3. Malignant tumors: such as cervical cancer, endometrial cancer, fallopian tube cancer, etc., there may be yellow, watery discharge with foul odor. Cervical cancer is mainly treated by a combination of surgery and radiotherapy, supplemented by chemotherapy. Endometrial cancer and fallopian tube cancer are mainly treated by surgery, supplemented by radiation therapy, chemotherapy and hormone therapy. Second, skin infection 1, ear infection: such as fungal otitis externa, otitis media, etc. Patients may have itching in the ear, yellow water-like discharge, or even tinnitus, blocked feeling in the ear or hearing loss. It is usually treated with topical antibiotic ear drops, and antibacterial ointment is also available. When the inflammation is more serious, you need to go to the hospital as soon as possible; 2. Wound infection: if the wound appears yellowish watery discharge, it may be related to infection or ischemic fatty tissue liquefaction, if there is slight redness and swelling, it may be related to wound infection, foreign body infection can be removed and anti-inflammatory treatment can be carried out; if there is no redness and swelling, it may be related to fat liquefaction, it can be drained first, and the wound can heal after the fatty tissue is fully necrotic and liquefied; 3. Perianal infection: such as hemorrhoids, perianal abscess, etc., when the discharge appears yellow watery, indicating local infection, you can use potassium permanganate solution sitz bath and carry out the corresponding anti-infection treatment. Note daily attention to skin hygiene, sexual hygiene and menstrual hygiene to prevent retrograde infection and cross-infection. If you are diagnosed with a gynecological-related disease, you need to actively cooperate with your doctor for treatment, and you should not have intercourse or take a bath during the medication period to avoid prolonged illness.