primary hyperparathyroidism
Medical term for a condition where the parathyroid glands produce too much parathyroid hormone due to a problem within the glands themselves.
Primary hyperparathyroidism is often caused by parathyroid hyperplasia or adenoma.
A compound of 原発性 (primary), 副甲状腺 (parathyroid gland), 機能 (function), and 亢進症 (hyperactivity/hyperfunction condition). The term is a direct medical translation.