The cause of hyperfunction of parathyroid glands is in majority of cases is parathyroid adenoma ,followed by hyperplasia,and carcinoma only in 1 to 2% of cases.The frequency of primary hyperparathyroidism is 1/1000 individuals in general population. Here we present our experience of 4 parathyroid adenoma cases presenting with variable nonspecific symptoms causing difficulty in diagnosis.All 4 cases were treated with parathyroid adenoma excision without removal of thyroid gland.