1、Hyperparathyroidism is a condition in which the parathyroid glands produce too much parathyroid hormone.
甲状旁腺功能亢进症是一种情况，其特点是甲状旁腺分泌过多的甲状旁腺激素。
2、The most common cause of hyperparathyroidism is a non-cancerous growth (adenoma) on a parathyroid gland.
甲状旁腺功能亢进症最常见的原因是甲状旁腺上的非癌性肿块（腺瘤）。