Pregnant women holding urine actually has no effect on the fetus, but it will have some effect on the pregnant women themselves. There is a possibility that it will lead to a heavier burden on the pregnant woman’s kidneys, because the human bladder stores a limited amount of urine, and if there is more and more urine, the bladder is propped up and the bladder may lose its elasticity if it does not urinate for a long period of time, and there is a possibility that the waste in the body is not excreted, which will lead to a series of diseases or inflammation. There is also the possibility of affecting the uterus, as the bladder is located in the same pelvic cavity as the female genitals. If the bladder is full it may press on the uterus, and there is also the possibility of urinary incontinence in women. If you hold your urine for a long period of time, it may lead to urinary incontinence, which can make a pregnant woman feel fatigued and weak. If you want to not hold urine, pregnant women can first urinate in time, control the amount of water consumption, but not too much control, not too much drinking can be, eat less diuretic food, avoid supine position.