Pregnant women with kidney stones that have fallen into the ureter and are painful can be treated by increasing water intake, moderate activity, medication and surgery. 1. Increase water intake: Increasing water intake on a daily basis can increase the frequency of urination and promote the discharge of small stones. 2. Moderate activity: Pregnant women can also do moderate exercise, such as walking, climbing stairs, etc., which can encourage the movement of stones, and thus promote the discharge of stones. 3. medication: due to the special period of pregnancy, pregnant women must be careful with the use of drugs. Such as common calcium urate stones, can follow the doctor’s advice to apply potassium citrate for treatment. At present, there is no clear conclusion on the effect of this drug on pregnant women, if not necessary, it is not recommended to apply at will. After the use of the drug, abdominal pain, nausea and other adverse reactions, you should also consult a doctor in time. 4. Surgery: Conventional surgical methods include extracorporeal shock wave lithotripsy and ureteroscopic lithotripsy, etc. Such surgeries may affect pregnancy to some extent, and should also be applied with caution. When the above symptoms occur, pregnant women are advised to seek timely medical treatment, which must be formulated by specialized doctors.