Early pregnancy yellow discharge with a slightly sour odor may be a normal physiological phenomenon, but may also be caused by vaginal inflammation and cervical inflammation. Early pregnancy, due to changes in hormone levels in the body, secretions may become viscous, discharged more slowly, pregnant women who do not wash in a timely manner is presented with yellow secretions slightly acidic odor, if there is no itching and other discomforts, you can temporarily observe, and diligently change underwear, wash the vulva, keep the perineum clean and dry can be. If the early pregnancy discharge color yellow with sour taste, accompanied by itching or pain and other discomforts, but also to consider the existence of vaginitis, cervicitis and other diseases, it is recommended to go to the hospital in a timely manner to the routine test of the leukorrhea, according to the results of the test, under the guidance of a professional doctor to use medication.