Hypoparathyroidism

Hypoparathyroidism is a rare condition in which the parathyroid glands produce too little parathyroid hormone. This hormone plays an essential role in regulating calcium and phosphorus levels in the body, which are important for nerve function, muscle contraction and bone health.

When parathyroid hormone levels are low, calcium levels in the blood drop while phosphorus levels rise. This imbalance can lead to problems affecting the muscles, nerves and bones. Hypoparathyroidism may be temporary or lifelong, depending on the cause. With proper treatment and regular monitoring, most people can manage the condition effectively.

Symptoms

Symptoms of hypoparathyroidism are mainly related to low calcium levels and can range from mild to severe.

Common symptoms include:

• Tingling or numbness in the fingertips, toes or lips

• Muscle cramps or spasms

• Twitching of facial muscles

• Fatigue

• Weakness

• Dry skin

• Brittle nails

• Hair loss

• Anxiety or depression

• Memory or concentration problems

Severe low calcium levels can cause seizures, abnormal heart rhythms or difficulty breathing and require urgent medical care.

Causes

Hypoparathyroidism occurs when the parathyroid glands are damaged, removed or do not function properly.

Possible causes include:

• Accidental damage to or removal of the parathyroid glands during neck or thyroid surgery

• Autoimmune disorders that attack the parathyroid glands

• Genetic conditions affecting parathyroid development or function

• Low magnesium levels, which can interfere with parathyroid hormone release

• Radiation therapy to the head or neck

• Rare metabolic or inherited disorders

In some cases, the cause remains unknown.

Risk factors

Factors that may increase the risk of hypoparathyroidism include:

• Recent neck or thyroid surgery

• Autoimmune disease

• Family history of hypoparathyroidism

• Certain genetic syndromes

• Low magnesium levels

• Previous radiation treatment to the neck

The condition can affect both adults and children.

Complications

Without proper treatment, hypoparathyroidism can lead to long-term complications related to low calcium levels.

Possible complications include:

• Seizures

• Heart rhythm abnormalities

• Dental problems

• Cataracts

• Frequent muscle spasms

• Brittle bones or abnormal bone development

• Kidney problems due to calcium imbalance

Early treatment helps reduce the risk of serious complications.

Prevention

Hypoparathyroidism cannot always be prevented, but certain steps may reduce the risk or support early detection.

Preventive measures include:

• Careful surgical techniques during thyroid or neck surgery

• Monitoring calcium and magnesium levels after neck surgery

• Regular follow-up for people with autoimmune or genetic conditions

• Early evaluation of symptoms such as muscle cramps or tingling

Timely diagnosis and consistent treatment are key to maintaining healthy calcium balance and preventing complications.