What is hypoparathyroidism? Hypoparathyroidism is caused by
underactive parathyroid glands. Parathyroid glands are four
small glands located next to the thyroid. They are responsible
for regulating blood calcium levels as well as magnesium and
phosphorus levels. If the parathyroid glands do not produce or
secrete enough parathyroid hormone (PTH), it will result in low
levels of calcium in the bloodstream. The low levels of calcium
lead to muscle spasms, or tetany, an increased excitability of
the nerves, and disturbances in heart rhythm. The most common
cause of hypoparathyroidism is injury to or accidental removal
of all four glands during a removal of the thyroid. Some people
are born without parathyroid glands or the glands function
suddenly decline due to unknown reasons. Thyroid Gland - Click
to Enlarge What are symptoms of hypoparathyroidism? The
following are the most common symptoms of hypoparathyroidism.
However, each person may experience symptoms differently.
Symptoms may include: Uncontrollable, p