It is not uncommon for women to have kidney or ureteral stones in pregnancy. The clinical manifestations include pain in the lower back and abdomen, nausea and vomiting, bladder irritation symptoms, and hematuria, which are similar to those of non-pregnancy. The pain is severe and unbearable for the patient. The combination of urinary stones is more common in middle and late pregnancy than in early pregnancy. Diagnosis: Ultrasound is the preferred method for the diagnosis of stones with high accuracy and no damage to the fetus, and can be used repeatedly. The use of magnetic resonance urologic imaging (MRU) can clearly show the dilated collecting system and can clearly show the site of obstruction. In view of the teratogenic effects of X-rays on the fetus, radiation and CT examinations are contraindicated in patients with combined stones in pregnancy. Treatment: Conservative treatment is preferred for pregnancy-associated urinary tract stones. Treatment should be determined according to the size of the stone, the site of obstruction, the presence of infection, the presence of renal impairment, and clinical symptoms. For those with small stones that do not cause serious renal function impairment, comprehensive treatment is used, giving measures such as antispasmodic, analgesic and infection prevention. Drink more water, increase the activity level and promote the discharge of stones. For severe upper urinary tract obstruction caused by stones, keeping urine flowing smoothly is the main goal of treatment. About 30% of patients eventually require surgery due to failure of conservative treatment or stone obstruction complicated by severe infection and acute renal failure. Drainage of urine through local anesthesia with ureteral placement of double J-tube or percutaneous nephrostomy and methods can relieve the condition and buy time for later treatment of stones. Extracorporeal shock wave lithotripsy is not recommended for pregnancy-associated stones. Surgical procedures including pus nephrectomy, pelvic ureterotomy for stone extraction, ureteroscopic lithotripsy and even percutaneous nephrolithotripsy have been reported in patients with pregnancy-associated stones. However, intraoperative complications can be extremely difficult to manage if they arise, and more invasive treatments are generally not advocated. The risks of anesthesia and surgery during pregnancy are difficult to assess, with general anesthesia in the first trimester (early) leading to an increased chance of malpractice and a tendency to miscarriage in the second trimester; however, this chance is generally considered to be small. In conclusion, treatment of combined urinary tract stones during pregnancy must be careful and individualized to the patient’s specific condition. The risk of treatment should be minimized.