Signs and symptoms
... A majority of people with hyperparathyroidism have no signs or symptoms. In those who do, the symptoms frequently come on slowly and are usually subtle, such as a feeling of weakness or fatigue, or va...

Causes
... Calcium is the most abundant mineral in your body, best known for its role in keeping your teeth and bones healthy. But calcium also helps your blood clot, aids in the transmission of signals in nerve...

Risk factors
... Twice as many women as men develop primary hyperparathyroidism, and risk increases with age. Two out of every 1,000 women age 60 and older will develop the disease. Infants and adults with vitamin D d...

Screening and diagnosis
... Because hyperthyroidism often causes few if any symptoms, you may not know you have the disorder until your doctor notices high levels of calcium on routine blood tests or on tests that screen for oth...