Leg cramps and leg pain during pregnancy are related to physiological factors such as overexertion, exposure to cold, uterine enlargement, etc. They may also be caused by calcium deficiency, which can be treated in general and with medication as prescribed by the doctor if necessary. 1. Physiological factors: leg cramps and leg pain may be caused when pregnant women are overworked, their legs are stimulated by cold, or the uterus enlarges and presses the inferior vena cava. Therefore, pregnant women should pay attention to rest, appropriate exercise, and also pay attention to their own warmth, timely according to the temperature change increase or decrease in clothing. 2. Calcium deficiency: If it is clear that it is caused by calcium deficiency, pregnant women can first supplement the calcium elements needed by the body from food, such as eggs, lean meat, soy milk, spinach and so on. If the effect of dietary therapy is not satisfactory or the calcium deficiency is serious, if necessary, you can follow the doctor’s advice to use calcium supplements or take special calcium tablets for pregnant women. It is recommended that those who suffer from leg cramps and leg pain during pregnancy should consult a doctor for a check-up to detect the disease. Pay attention to the reasonableness of the diet during pregnancy to ensure a balanced intake of nutrients, and also consult a doctor for obstetric examination on time in order to monitor the growth and development of the fetus.