For pregnant women, if there is pyelonephritis, the treatment is mainly to choose the third-generation cephalosporins antibiotic anti infection treatment. The impact on the fetus is relatively small. Pyelonephritis is not uncommon in clinical practice, but also easy to occur in pregnant women. It can show high fever, chills, low back pain, frequency of urination, urgency of urination, pain in urination and other symptoms. Since the main pathogen causing this disease is E. coli, ceftriaxone can be used for treatment. In addition, we should also pay attention to drinking more water and urinating frequently to assist the recovery of diseases. In daily life, we should pay attention not to stay up late and overwork to avoid aggravating the disease. We should eat light food and eat less spicy and stimulating food.