Thyroid diseases affect up to 5% of all pregnancies. Adverse pregnancy and neonatal outcomes are increased by maternal thyroid disease and adequate treatment is thought to reduce these risks.
Pregnancy can exacerbate endocrinopathies and obscure their diagnosis in patients with parathyroid or thyroid disease ... as maternal parathyroid hormone levels are naturally higher than before ...
It can also occur during a normal pregnancy as thyroid hormones are affected by "the pregnancy hormone" human chorionic gonadotropin (hCG). Less often, a lack of TSH produced by the pituitary gland ...