If a pregnant woman has urinary stones, the stones themselves have no effect on the fetus, as they do not pass through the blood-fetal barrier and affect the fetus, nor do they cause urinary tract pathologies in the fetus, but if a pregnant woman has stones that cause infection or acute pain, the use of medications that affect the growth of the fetus may have an effect. Therefore, it is recommended that pregnant women who have stones do not use medication rashly, but go to the hospital and consult with their obstetrician and urologist to choose an appropriate treatment plan that will not affect the fetus in the womb. Most pregnant women have stones due to high nutritional status and insufficient water intake, some of them can be expelled on their own after drinking more water and urinating more. This is safer for the fetus and will not have any effect.