Leukorrhea sometimes yellow sometimes not yellow if there is no odor and itching discomfort belongs to the normal secretion, but if there is odor or itching discomfort may be and vaginitis or cervicitis and other diseases caused by the need for symptomatic treatment. 1. Normal secretions. Female leukorrhea is a mixture of cervical glands and vaginal mucosal exudate, uterine gland secretion, normal leukorrhea is milky white or transparent, if the vaginal leukorrhea is not cleaned in time, after oxidation, it may become yellow secretion, which will lead to the phenomenon of leukorrhea is sometimes yellow and sometimes not yellow. However, there is generally no odor and itching discomfort, which is normal. It is recommended to use warm water to wash the lower body, keep the vulva clean, no need to use medicine. 2. Vaginitis. Leukorrhea sometimes yellow sometimes not yellow may be and vaginal inflammation infection, due to a variety of pathogenic bacteria invasion of the vagina leading to vaginal flora environment imbalance, thus triggering gynecological inflammation infection will appear after the yellow symptoms of leukorrhea, inflammation does not attack is normal leukorrhea, once vaginitis attack will become yellow secretion, and accompanied by bad smell and itching discomfort. Can be combined with routine examination of leukorrhea to confirm the diagnosis of causative organisms after giving metronidazole suppositories, clotrimazole suppositories and other drug therapy. 3. Cervicitis. Women suffering from cervical inflammation infection will also appear yellowish symptoms, when the inflammation is mild, there may be no obvious abnormal changes in the leukorrhea, if aggravated, it will be yellowish, accompanied by abdominal pain and contact bleeding and other symptoms. Combined with gynecological examination can be given anti-uterine inflammation tablets, pao gynecological Kang suppository and other medications.