Dear Dr. Roach: I am an 88-year-old man in quite good health. I spend at least 30 hours a week doing yard work. I have had high blood calcium for many years, usually around 10.7. I take pravastatin ...

Dear Dr. Donohue: I would like to read about parathyroid conditions. The four parathyroid glands lie on the back of the thyroid in the lower neck. They're small - less than two-fifths of an inch in ...

Hyperparathyroidism can cause unusually high calcium levels in the blood. This can lead to back pain when there is damage to the kidneys or bones. It can also cause muscle pain. Share on Pinterest ...

Secondary hyperparathyroidism is a complex endocrine condition characterized by excess circulating parathyroid hormone (PTH) resulting from an underlying condition, most commonly chronic kidney ...

Medically reviewed by Kelly Wood, MD Endocrine disorders happen when hormone levels are too high or too low. Fatigue and mood ...