Postpartum calcium deficiency may cause joint or low back pain, cramps and generalized symptoms. 1. Joint or back pain: postnatal calcium deficiency will lead to joint pain, and some mothers will have back pain when they are tired after calcium deficiency. 2. Cramp: Cramp is a common symptom of calcium deficiency, especially in winter when it is cold. 3. Systemic symptoms: Postpartum calcium deficiency may also cause weakness, dizziness, dizziness and other systemic symptoms, which may also be accompanied by insufficient milk secretion, edema and other symptoms. Mothers should sunbathe more to promote calcium absorption, eat more calcium-rich foods, such as milk, fish and shrimp. If necessary, you can take calcium supplements under the guidance of a doctor to improve.