Hyperparathyroidism is a disorder of the parathyroid glands. It happens when one or more of these glands create too much parathyroid hormone (PTH) in the bloodstream. As a result, it causes calcium levels in your blood to rise too high, which can lead to health problems such as bone thinning and kidney stones. Doctors usually catch primary hyperparathyroidism early through routine blood tests, before serious problems occur.

There are two types of hyperparathyroidism; primary and secondary.
In primary hyperparathyroidism, your parathyroid glands make too much PTH, which causes the level of calcium in your blood to rise.
In secondary hyperparathyroidism, the overactivity of the parathyroid glands occurs in response to another condition that's causing calcium loss.

Insomnia

Fatigue

Irritability

Vomiting

Nausea

Nephrolithiasis

Polydipsia

Polyuria

Weak bones that break or fracture easily

Bone pain

Muscle cramps

Hypotensive

Poor memory

Depression

Poor concentration

Anorexia or loss of appetite

Arthralgia

Hyperparathyroidism