Inflammation of the urethra, in addition to the application of sensitive antibiotics systemic treatment, but also pay attention to the inflammation is prone to recurrent attacks. Dietary attention can play a preventive role by eating more light as well as water-rich foods, such as watermelon. There are also a variety of vegetables, soups and fruits to eat more, to drink more water, more urination, eat more heat detoxification, diuretic and laxative effect of food. For example, marjoram, winter melon, etc. Drinking water should reach 1500ml-2000ml per day to increase the diuretic effect as well as the immune function of the kidneys, followed by abstaining from spicy and stimulating foods, such as leeks, onions, garlic, etc.