Hypoparathyroidism
What is Hypoparathyroidism?
Hypoparathyroidism is a condition where your parathyroid glands do not make enough parathyroid hormone. These four tiny glands sit behind your thyroid gland in your neck. They control the amount of calcium in your blood and bones.
When parathyroid hormone levels are too low, your blood calcium drops. This can cause muscle cramps, numbness, tingling, and even seizures. Your body needs calcium for muscles, nerves, and heart function to work properly.
This condition is rare and often happens after neck surgery. It can also be caused by autoimmune diseases or genetic disorders. Without treatment, low calcium can lead to serious health problems over time.
Symptoms
- Muscle cramps and spasms, especially in your hands, feet, and face
- Tingling or numbness in your lips, fingers, and toes
- Fatigue and feeling weak
- Dry, brittle hair and nails
- Dry, scaly skin
- Memory problems and difficulty concentrating
- Anxiety, depression, or mood changes
- Abnormal heart rhythms
- Seizures in severe cases
- Dental problems and tooth enamel issues
Some people develop symptoms slowly over time. Others notice problems soon after surgery or injury to the parathyroid glands.
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Causes and risk factors
Most cases happen after neck surgery, especially thyroid surgery. During these procedures, the parathyroid glands can be accidentally removed or damaged. Radiation therapy to the neck can also harm these glands. Autoimmune diseases sometimes cause your immune system to attack the parathyroid glands.
Genetic conditions can cause hypoparathyroidism from birth or early childhood. Low magnesium levels can temporarily reduce parathyroid hormone production. Risk factors include having neck surgery, radiation treatment for head or neck cancer, and a family history of parathyroid or autoimmune disorders.
How it's diagnosed
Doctors diagnose hypoparathyroidism through blood tests that measure calcium, parathyroid hormone, and phosphate levels. Low calcium combined with low parathyroid hormone confirms the diagnosis. Your doctor may also check ionized calcium, which measures the active form of calcium in your blood.
Rite Aid offers add-on testing that includes calcium, ionized calcium, and intact parathyroid hormone. These tests help identify whether your parathyroid glands are working properly. Your doctor may also order urine tests and check your magnesium and vitamin D levels.
Treatment options
- Calcium supplements taken several times daily to maintain blood calcium levels
- Active vitamin D supplements to help your body absorb calcium
- Magnesium supplements if your magnesium is low
- High calcium diet including dairy products, leafy greens, and fortified foods
- Regular blood tests to monitor calcium and parathyroid hormone levels
- Avoiding high phosphate foods like soda and processed meats
- Prescription parathyroid hormone replacement in some cases
- Managing stress to reduce muscle tension and spasms
Need testing for Hypoparathyroidism? Add it to your panel.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
The most common cause is accidental damage to the parathyroid glands during neck surgery, especially thyroid surgery. The parathyroid glands are very small and sit close to the thyroid gland. Surgeons may accidentally remove or damage them during procedures. Other causes include autoimmune diseases, radiation therapy, and genetic conditions.
Most cases cannot be fully cured, but symptoms can be managed well with treatment. If the condition happened after surgery, parathyroid function sometimes returns within months. For permanent cases, lifelong calcium and vitamin D supplements keep blood calcium levels normal. Newer treatments using parathyroid hormone replacement help some people reduce their supplement needs.
Untreated low calcium can cause serious problems. Muscle spasms can become severe and affect breathing. Abnormal heart rhythms may develop and become life threatening. Long term complications include cataracts, kidney problems, and calcium deposits in the brain. Seizures can occur when calcium levels drop very low.
Common signs include tingling around your mouth and in your fingertips. You may notice muscle cramps or twitches, especially in your hands and feet. Fatigue and mood changes are also common. A simple blood test measuring your calcium and parathyroid hormone levels confirms if your calcium is low.
Focus on high calcium foods like milk, yogurt, cheese, and fortified plant milks. Leafy greens like kale and collard greens provide calcium. Canned fish with bones, tofu, and fortified cereals help too. Work with your doctor because you may need to limit high phosphate foods like soda, processed meats, and some grains.
Testing frequency depends on how stable your condition is. When first diagnosed or adjusting treatment, you may need weekly or monthly tests. Once your calcium levels are stable, testing every 3 to 6 months is typical. Your doctor will recommend a schedule based on your symptoms and medication needs.
Yes, stress can worsen muscle tension and spasms. Stress hormones may also affect how your body uses calcium. Many people notice more tingling and cramping during stressful periods. Managing stress through relaxation techniques, regular sleep, and gentle exercise can help reduce symptom flares.
Some rare forms are genetic and run in families. These include conditions like DiGeorge syndrome and autoimmune polyendocrine syndrome. Most cases are not inherited and happen after surgery or injury. If you have a genetic form, genetic counseling can help you understand risks for family members.
Yes, regular exercise is safe and healthy when your calcium levels are well controlled. Start slowly if you have been inactive. Low impact activities like walking, swimming, and yoga work well. Avoid very intense exercise if your calcium is low, as it may trigger muscle cramps or spasms.
Total calcium measures all the calcium in your blood, both bound and free. Ionized calcium measures only the active, unbound form that your body actually uses. Ionized calcium gives a more accurate picture of how much usable calcium you have. Both tests help diagnose and monitor hypoparathyroidism.