Low blood calcium

Low Blood Calcium

Hypocalcemia

Hypocalcemia is an abnormally low level of calcium in the blood. It may be caused by vitamin D deficiency, kidney failure, acute pancreatitis, or insufficient magnesium and protein in the blood.

Other causes of hypocalcemia include low levels of parathyroid hormone (hypoparathyroidism), malnutrition, and parathyroid surgery.

Symptoms often do not occur with mild hypocalcemia. As hypocalcemia becomes more severe, the following symptoms may develop:

  • Abnormal heart rhythms
  • Muscle cramps, muscle twitching, or seizures
  • Inability to detect touch accompanied by burning, pricking, tickling, or tingling sensation (paresthesia) of the hands, feet, lips, and tongue

Hypocalcemia is treated by determining and treating the cause of the low blood calcium. Oral or intravenous calcium, magnesium, and vitamin D are given to restore the blood level to normal.

How can you care for hypocalcemia?

  • Take your medicines exactly as prescribed. Call your doctor if you think you are having a problem with your medicine.
  • Eat foods rich in calcium. These include yogurt, cheese, milk, and dark green vegetables. This is the best way to get the calcium you need. You can get vitamin D from eggs, fatty fish, cereal, and milk.
  • Talk to your doctor about taking a calcium plus vitamin D supplement.
  • Stay active. Regular weight-bearing exercise, such as walking, can help keep your bones strong. It can also improve your overall health.
  • Spend a small amount of time outside in the sun without sunscreen. The sun helps your body make vitamin D. Talk to your doctor first if you have had skin cancer or you are at high risk for skin cancer.

Hypocalcemia: When to call

Call your doctor now or seek immediate medical care if:

  • You feel numb or have tingling in your fingers and hands or toes and feet.
  • You are confused or are having trouble remembering things.
  • You have muscle spasms or cramps.
  • Your heart seems to be speeding up and then slowing down or skipping beats.
  • You are feeling down or blue, or you are not enjoying things like you once did. You may be depressed, which is common in people with hypocalcemia. Depression can be treated.

Watch closely for changes in your health, and be sure to contact your doctor if:

  • You do not get better as expected.

©2011-2025 Healthwise, Incorporated

The content above contains general health information provided by Healthwise, Incorporated, and reviewed by its medical experts. This content should not replace the advice of your healthcare provider. Not all treatments or services described are offered as services by us. For recommended treatments, please consult your healthcare provider.

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