Understanding Hypercalcemia: Causes, Symptoms, and Treatment

Hypercalcemia occurs when the level of calcium in the blood is too high—usually above 10.0 mg/dL. Calcium plays a key role in keeping bones strong, helping muscles work, and supporting nerve function. However, too much calcium in the bloodstream can interfere with these systems and lead to serious health problems.

The most common cause of hypercalcemia is a condition called primary hyperparathyroidism (PHPT). This happens when one or more of the parathyroid glands become overactive and produce too much parathyroid hormone (PTH). These small glands are located in the neck near the thyroid and help regulate calcium levels. When they produce too much PTH, calcium is pulled from the bones, absorbed more in the intestines, and lost less through urine—leading to high blood calcium levels.

Symptoms of Hypercalcemia:

• Constant fatigue or muscle weakness
• Kidney stones due to excess calcium being filtered
• Bone pain or weakened bones, increasing fracture risk
• Nausea, constipation, or appetite loss
• Trouble with memory, focus, or mood

Best Treatment: Parathyroid Surgery

For most people with PHPT, parathyroid surgery is the only long-lasting solution. The procedure involves removing the overactive gland, which allows calcium levels to return to normal. At ParathyroidAtlanta, a minimally invasive surgery called MIRP (Minimally Invasive Radioguided Parathyroidectomy) is used to precisely remove the affected gland with a small incision, resulting in quicker recovery and fewer complications.

Life After Treatment

Patients usually feel better within days—less tired, fewer digestive problems, and improved focus. Most go home the same day and return to regular activities in less than a week.

Treating hypercalcemia early helps prevent long-term damage to bones, kidneys, and mental health.