Postpartum calf pain may be caused by calcium deficiency or varicose veins in the lower limbs, etc. It is recommended to have further examination and diagnosis. 1. Calcium deficiency: most of the nutrients consumed by the mother during pregnancy will be absorbed by the fetus in the womb, which will cause the mother’s calcium loss, lower bone density, calf pain or cramps, etc., you can take calcium tablets under the guidance of the doctor to supplement calcium and vitamin D3 to promote the absorption of calcium. 2. Varicose veins in the lower limbs: During pregnancy, as the fetus in the womb gradually grows, it will increase the body weight and aggravate the burden on the lower limbs, which will cause the obstruction of venous return in the lower limbs and symptoms of varicose veins, such as soreness in the lower limbs, etc. You can take medicines such as MaiZhiLing to improve the blood circulation. It is recommended to consult a doctor if the calf pain persists without relief, and to avoid blindly using medication.