In the case of urinary tract infections in pregnant women, the principle is to take into account the fetus, and the treatment includes the following points: 1) the duration of pregnancy, whether it is early, middle or late; 2) the degree of inflammation of the urinary tract, and the choice of medication according to the patient’s condition. The treatment should take into account the pregnant woman and the fetus, so the treatment should be determined after communication with the obstetrician and the patient. If the pregnant woman has bladder irritation, the first non-medical treatment is to advise the patient to drink plenty of water to flush the bacteria from the bladder to the outside of the body. Tell the patient not to hold urine, to drink more water, to urinate more often, to pay attention to a light diet, not to eat spicy, stimulating and other foods that are easily inflamed, and to eat more vegetables to keep the bowels open. Then it is recommended that the patient can eat bitter melon to clear the heat and fire, there can be cooked corn husk, barley kernel to dampness; 3, if the patient in this case is not controlled, but is fever, blood in the urine, lumbar pain, aggravation of the condition, there are white blood cells urine and pus urine, as soon as possible to the hospital to avoid delay. Generally for this patient according to drug sensitivity test, give anti-inflammatory drugs, with anti-inflammatory drugs that affect the fetus the least, such as there are second and third generation of cephalosporin and penicillin antibiotics, with 3-5 days to stop using.