During pregnancy, calcium demands increase to support fetal development. PTH helps regulate calcium levels by increasing calcium absorption in the intestines, reducing calcium excretion by the kidneys, and releasing calcium from the bones. Abnormal PTH levels can lead to conditions such as hyperparathyroidism or hypoparathyroidism, which can pose risks to both the mother and the fetus, including preeclampsia, preterm labor, and fetal growth restriction.
