Rice grains inside and outside the vagina by the anus, and vagina a little itchy, may be physiological reasons such as increased vaginal secretion or pathological reasons such as vaginitis, can be relieved by medication, improve lifestyle habits and other ways. 1. Physiological reasons: If it is caused by physiological reasons such as increased vaginal secretions, you can improve your lifestyle or adjust your diet to relieve it. For example, change underwear regularly, wear cotton underwear, eat less or no spicy and stimulating food, and put underwear under the sun. 2. Pathological causes: If the vaginitis is caused by pathogenic bacterial infection, you can choose drugs under the guidance of the doctor for treatment, such as metronidazole, clotrimazole, azithromycin and other drugs. It is worth noting that this situation must go to the hospital in time to check the diagnosis, timely identification of the cause of the disease, symptomatic treatment.