What are potential side effects of parathyroid disorders?

Osteoporosis. If an adenoma on the gland develops (usually only in one of the four), there is excess absorption and mobilization of calcium, which can result in enough loss of bone to risk fragility. If there is inadequate hormone, the opposite happens and low blood calcium can result in muscle contraction issues.
Consequences. Parathyroid hormones are responsible for regulating calcium level in blood. The most common cause of hyperparathyroidism is a growth on your parathyroid gland causing overproduction of this hormone. If high, it will raise calcium level in your blood causing osteoporosis, kidney stones, kidney problems, constipation, abdominal pain, bone pain, psychological overtone, fatigue, memory loss...
Various. Kidney stones, bone thinning abdominal complaints, memory loss, fatigue are most common.
Consider. Consider full evaluation as abnormal PTH can be from a parathyroid cancer. Abnormal PTH can affect calcium, phosphate, magnesium, and vitamin d levels.