Hyperparathyroidism is when the calcium levels in your blood and tissues are too high. If you have a type called primary hyperparathyroidism, you may need surgery to remove the overactive parathyroid gland or glands that causes high calcium levels. Surgery cures 95% of primary hyperparathyroidism. As with any operation, there can be complications, so talk with your doctor about the risks and benefits, what to expect during the recovery, and how long you’ll be in the hospital.