Appetite loss
Bone pain
Confusion
Excessive thirst
Fatigue
Frequent complaints of illness with no apparent cause
Frequent urination
Joint pain
Memory problems
Weakness
A benign growth (adenoma) on a gland
A malignant tumor
Enlargement (hyperplasia) of two or more parathyroid glands
Radiation therapy
Severe deficiency of calcium and vitamin D
Side effects of certain drugs including the drug of bipolar disorder
Endocrinologist