What is the difference between hyperparathyroidism and hypoparathyroidism?

High and low calcium. Hypoparathyroidisim has low calcium and low PTH (hormone that controls calcium). Hyperparathyroidis, has high calcium and either high or (abnormally) normal pth.
Low&High Cal&Parathy. Hypoparathyroid has low Cacium and Low Parathyroid hormone Hyperparathyropidism has high calcium level and high level of Parathyroid Hormone.