Hypercalcemia in Seniors: Causes, Symptoms and Treatment Guide
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Hypercalcemia in Seniors: Causes, Symptoms and Treatment Guide

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Published: July 21, 2026 | Last Reviewed: July 21, 2026 | Medically Reviewed by: Dr. Sarah Mitchell, MD, Geriatrics | Reading Time: 5 min




Key Takeaways

  • Understanding hypercalcemia seniors is important for seniors and their caregivers.
  • The condition is most often diagnosed at an early stage using routine blood tests.
  • An accurate diagnosis is needed when someone has hypercalcemia.
  • Treatment is aimed at the cause of hypercalcemia whenever possible.
  • How well you do depends on the cause of your high calcium level.

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What Are the Common Causes and Risk Factors?

Understanding hypercalcemia seniors is important for seniors and their caregivers. parathyroid hormone (PTH) and Vitamin D help regulate the calcium balance in the body.

  • PTH is made by the parathyroid glands. These are four small glands located in the neck behind the thyroid gland.

  • Vitamin D

    is obtained when the skin is exposed to sunlight, and from food sources or supplements.

The most common cause of high calcium blood level is excess PTH released by the parathyroid glands. This excess occurs due to:

  • An enlargement of one or more of the parathyroid glands.
  • A growth on one of the glands. Most of the time, these growths are benign (not a

    cancer

    ).

Calcium blood levels may also be high if your body is low on fluids or water.

Other conditions can also cause hypercalcemia:

  • Certain kinds of cancers, such as lung and breast cancer, or cancer that has spread to other organs.
  • Too much vitamin D in your blood (hypervitaminosis D).
  • Being immobile in bed for many days or weeks (mostly in children).
  • Too much calcium in your diet. This is called milk-alkali syndrome. It most often occurs when a person is taking more than 2000 milligrams of calcium bicarbonate supplements a day along with high doses of Vitamin D.

  • Overactive thyroid gland

    .

  • Chronic kidney disease or kidney failure

    .

  • Medicines such as thiazide diuretics (water pills) and lithium.
  • Some infections or health problems such as,

    Paget disease

    , tuberculosis and

    sarcoidosis

    .

  • An inherited condition that affects the body’s ability to manage calcium.

Men and women of all ages can have a high blood calcium level. However, it is most common in women over age 50 (after menopause). In most cases, this is due to an overactive parathyroid gland.

What Are the Symptoms and Warning Signs?

What Are the Symptoms and Warning Signs? - illustration

The condition is most often diagnosed at an early stage using routine blood tests. Most people have no symptoms.

Symptoms due to a high calcium level may vary, depending on the cause and how long the problem has been present. They may include:

  • Digestive symptoms, such as nausea or vomiting, poor appetite, or constipation
  • Increased thirst or more frequent urination, due to changes in the kidneys

  • Muscle weakness

    or twitches

  • Changes in how your brain works, such as feeling tired or fatigued or

    confused

  • Bone pain

    and fragile bones that break more easily

📖 What Are Exams and Tests?

What Are Exams and Tests?

An accurate diagnosis is needed when someone has hypercalcemia. People with kidney stones should have tests to check for hypercalcemia.

  • Serum calcium

  • Serum PTH

  • Serum PTHrP (PTH-related protein)
  • Serum vitamin D level

  • Urine calcium

    (usually a 24 hour collection)

📖 How Is It Treated?

How Is It Treated?

Treatment is aimed at the cause of hypercalcemia whenever possible. People with primary hyperparathyroidism (PHPT) may need surgery to remove the abnormal parathyroid gland. This will cure the hypercalcemia.

Severe hypercalcemia that causes symptoms and requires a hospital stay may be treated with the following:

  • Fluids through a vein — This is the most important therapy.
  • Calcitonin.
  • Dialysis, if kidney damage is involved.
  • Diuretic medicine, such as furosemide.
  • Medicines that stop bone breakdown and absorption by the body (bisphosphonates).
  • Glucocorticoids (steroids).
📖 What Is Outlook (Prognosis)?

What Is Outlook (Prognosis)?

How well you do depends on the cause of your high calcium level. The outlook is good for people with mild hyperparathyroidism or hypercalcemia that has a treatable cause. Most of the time, there are no complications.

People with hypercalcemia due to conditions such as cancer or sarcoidosis may not do well. This is most often because of the disease itself, rather than the high calcium level.

📖 What Are Possible Complications?

What Are Possible Complications?

GASTROINTESTINAL

  • Pancreatitis

  • Peptic ulcer

    disease (seldom occurs except in rare cases of MEN Type 1)

KIDNEY

  • Calcium deposits in the kidney (

    nephrocalcinosis

    ) that cause poor kidney function

  • Dehydration

  • High blood pressure

  • Kidney failure

  • Kidney stones

PSYCHOLOGICAL

  • Depression
  • Difficulty concentrating or thinking

SKELETAL

  • Bone cysts

  • Fractures

  • Osteoporosis

These complications of long-term hypercalcemia are uncommon today in many countries.

📖 When to Contact a Medical Professional?

When to Contact a Medical Professional?

Contact your health care provider if you have:

  • Family history of hypercalcemia
  • Family history of hyperparathyroidism
  • Symptoms of hypercalcemia
📖 How Is It Prevented?

How Is It Prevented?

How Is It Prevented? - illustration

Most causes of hypercalcemia cannot be prevented. Anyone with symptoms of hypercalcemia should have their blood calcium level checked.

Talk to your provider about the correct dose if you are taking calcium and vitamin D supplements.

Calcium – elevated; High calcium level; Hyperparathyroidism – hypercalcemia

📖 What Are Patient Instructions?

What Are Patient Instructions?

  • Hypercalcemia – discharge

  • Endocrine glands

    Endocrine glands

Bilezikian JP, Walker MD, Binkley N, Goltzman D, Mannstadt M. Hormones and disorders of mineral netabolism. In: Melmed S, Auchus RJ, Goldfine AB, Rosen CJ, Kopp PA, eds.

Williams Textbook of Endocrinology

. 15th ed. Philadelphia, PA: Elsevier; 2025:chap 27.

Coleman RE, Brown J, Holen I. Bone metastases. In: Niederhuber JE, Armitage JO, Kastan MB, Doroshow JH, Tepper JE, eds.

Abeloff’s Clinical Oncology

. 6th ed. Philadelphia, PA: Elsevier; 2020:chap 56.

Thakker RV. The parathyroid glands, hypercalcemia, and hypocalcemia. In: Goldman L, Cooney KA, eds.

Goldman-Cecil Medicine

. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 227.

Updated by: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.


  • Calcium

  • Parathyroid Disorders

Frequently Asked Questions

Key Takeaways

Understanding hypercalcemia seniors is important for seniors and their caregivers. The condition is most often diagnosed at an early stage using routine blood tests. An accurate diagnosis is needed when someone has hypercalcemia.

What Are the Common Causes and Risk Factors?

Understanding hypercalcemia seniors is important for seniors and their caregivers. parathyroid hormone (PTH) and Vitamin D help regulate the calcium balance in the body. PTH is made by the parathyroid glands.

What Are the Symptoms and Warning Signs?

The condition is most often diagnosed at an early stage using routine blood tests. Most people have no symptoms. Symptoms due to a high calcium level may vary, depending on the cause and how long the problem has been present.

What Are Exams and Tests?

An accurate diagnosis is needed when someone has hypercalcemia. People with kidney stones should have tests to check for hypercalcemia. Serum calcium

Serum PTH

Serum PTHrP (PTH-related protein)

Serum vitamin D level

Urine calcium

(usually a 24 hour collection)

📖 How Is It Treated?

How Is It Treated?

Treatment is aimed at the cause of hypercalcemia whenever possible. People with primary hyperparathyroidism (PHPT) may need surgery to remove the abnormal parathyroid gland. This will cure the hypercalcemia.

About the Author: This article was researched and written by the SilverWell Hub editorial team. It was medically reviewed by Dr. Sarah Mitchell, MD, Geriatrics.

Sources: This article is adapted from MedlinePlus, a service of the National Library of Medicine.

Disclaimer: This information is for educational purposes only. See our full Medical Disclaimer.

Published: July 21, 2026 | Next review: January 2027