After the second lithotripsy, progesterone is still needed, mainly to dilate the ureter and prevent renal colic. Progesterone is a progesterone drug, a steroid hormone secreted by the ovary and placenta, which is generally used for preeclampsia and habitual abortion, premenstrual tension syndrome, anovulatory dysmenorrhea and anovulatory amenorrhea, and used in combination with estrogen to treat menopausal syndrome. For some patients, in the process of lithotripsy hit progesterone, mainly because progesterone can play the role of diastolic smooth muscle, can expand the ureter, can promote the discharge of stones, to prevent the phenomenon of renal colic caused by patients. Therefore, in the process of secondary lithotripsy, you need to cooperate with the doctor to inject progesterone, specifically to combine with their own situation to judge. It is recommended that patients should go to local regular hospitals for lithotripsy treatment, and have professional and experienced doctors to operate.