Brown discharge but no blood for four or five days in a row is generally a condition that occurs in women’s vaginal discharge. It can be first considered to be caused by physiological reasons. Some women may have a small amount of endometrial shedding during ovulation, which will produce a brown discharge that lasts for four or five days and can be relieved by itself without special treatment. Some women may have a long menstrual period and continue to have brown discharge for four or five days before and after menstruation, usually due to a small amount of endometrial shedding, no need to worry too much. However, if this phenomenon persists or does not subside, then it should be taken seriously. Normal vaginal discharge should be white and thin, but when pathology occurs, the color of the discharge may change. Therefore, if brown vaginal discharge occurs, the first thing to consider is whether there is an intrauterine device in the body. The bleeding may be caused by the device rubbing against the local area, resulting in brown discharge, which is usually relieved by removing the device. Secondly, it is also necessary to consider the possibility of pregnancy. If brown vaginal discharge occurs after pregnancy, it may be a sign of pre-eclampsia miscarriage and requires timely medical attention for fetal preservation. In addition, the clinical general consideration may be cervicitis, cervical polyps and other cervical lesions resulting in the appearance of brown discharge: 1. Cervicitis: refers to the inflammation of the cervix, mostly caused by pathogenic bacterial infection, local stimulation causing injury can also be induced. Patients will experience abnormal vaginal bleeding and increased discharge, which may appear as brown discharge without blood and will last for several days. Clinical treatment is based on anti-infective treatment, and according to the clinical examination results, azithromycin, doxycycline, ceftriaxone sodium, cefoxitin sodium, fluoxacin, etc. are often given orally or by injection. 2, cervical polyp: it is a superfluous organism produced by tissue proliferation in the cervical area, which is clinically considered to be related to chronic inflammation and infection, and the patient may have brown discharge, which often lasts for several days. If the cervical polyp is diagnosed, it usually requires polyp removal, and the polyp is usually tested pathologically to determine the possibility of malignancy, and if malignancy exists, further medication and surgical treatment is required. In addition, brown discharge for four or five consecutive days but without blood may also suggest lesions such as submucosal fibroids and cervical cancer of the uterus. Therefore, if the brown discharge persists, it is recommended to seek medical attention promptly to clarify the diagnosis.