Hypoparathyroidism: Symptoms, Treatment and Emerging Therapies
Dr Teng-Teng Chung outlines the key features of hypoparathyroidism, including its causes, symptoms, treatment options, and emerging therapies that may help improve long-term management. She also discusses the importance of careful monitoring and specialist endocrine care in maintaining stable calcium levels and reducing the risk of complications.
Hypoparathyroidism is a condition where the body does not make enough parathyroid hormone (PTH), which normally helps control calcium levels in the blood. Low PTH causes low blood calcium, which can produce tingling or numbness (often around the mouth and in the hands or feet), muscle cramps or spasms, fatigue, and sometimes mood or memory changes.
Although hypoparathyroidism is relatively uncommon, it can have a significant impact on quality of life if calcium levels are not adequately controlled.
Early diagnosis and appropriate treatment are important to help prevent symptoms and reduce the risk of long-term complications. At the London Lauriston Clinic, patients with hypoparathyroidism can access specialist endocrine assessment, diagnostic testing, and personalised treatment planning within a private health clinic in London.
Common Causes of Hypoparathyroidism
Most commonly it follows thyroid or neck surgery when the tiny parathyroid glands are injured or removed.
Less commonly it is autoimmune (the immune system attacks the parathyroid glands), genetic, or follows radiation or other neck procedures.
Understanding the underlying cause is important, as it can influence both treatment decisions and long-term monitoring requirements.
Treatment Options for Hypoparathyroidism
The usual treatment is oral active vitamin D (alfacalcidol or calcitriol) together with oral calcium supplements as needed. Alfacalcidol helps the gut absorb calcium without relying on PTH.
Some people also need regular dietary advice to keep calcium intake steady.
If conventional treatment is insufficient, patients may require higher or more frequent doses, and some need additional medication to reduce urinary calcium loss.
The primary aim of treatment is to maintain calcium levels within a safe range while minimising symptoms and avoiding complications associated with both low and high calcium levels.
Why Monitoring is Difficult
The therapeutic window is narrow: calcium must be kept high enough to prevent symptoms but not so high that it causes kidney stones, kidney damage, or high urine calcium.
Blood calcium fluctuates with illness, diet, hydration, other medicines, and timing of doses, so levels can change between clinic checks.
Regular monitoring usually includes blood calcium and renal function tests and, occasionally, 24-hour urine calcium measurements. Dose changes are often small and need repeating blood tests to avoid over- or under-treatment.
For this reason, long-term management often requires ongoing communication between patients and their endocrine specialist, particularly when symptoms change or treatment adjustments are needed.
Long-Term Issues and What to Watch For
Symptoms of low calcium (tingling, muscle cramps, seizures) or high calcium (nausea, constipation, excessive thirst, kidney pain) should prompt urgent review.
Kidney function and urine calcium are checked periodically to reduce the risk of kidney stones or renal impairment.
Regular follow-up appointments help identify potential complications early and support safe long-term treatment.
New Treatments on the Horizon
Injectable parathyroid hormone treatments such as palopegteriparatide (Yorvipath) are being developed as a once-daily injection to replace the hormone that is normally produced by the parathyroid glands. These medicines aim to work in a way that more closely mimics the body’s natural parathyroid hormone, helping to keep calcium levels stable and potentially reducing the need for high doses of calcium and active vitamin D tablets.
These treatments are currently under review and may become available once they receive approval from NHS England and local commissioners. If approved, they could offer a more natural and steady way of managing calcium levels for people who find standard therapy difficult to control.
The development of hormone replacement therapies represents an important step forward in the management of hypoparathyroidism, as they aim to address the underlying hormone deficiency rather than simply treating its effects on calcium levels.
When to See a Specialist
Specialist assessment should be considered if symptoms suggest low calcium levels, particularly persistent tingling, muscle cramps, muscle spasms, fatigue, or unexplained neurological symptoms.
Patients who have undergone thyroid or neck surgery and subsequently develop symptoms of low calcium should seek medical assessment promptly. Specialist endocrine input may also be beneficial for individuals whose calcium levels remain difficult to control despite treatment, or those experiencing complications related to long-term therapy.
Early assessment can help establish an accurate diagnosis, optimise treatment, and reduce the risk of long-term complications.
About Dr Teng-Teng Chung
Dr Teng-Teng Chung PhD, FRCP is a Consultant Endocrinologist at the London Lauriston Clinic with expertise in calcium disorders, parathyroid conditions, and a wide range of endocrine diseases.
She is also the Clinical Lead for the Adult Thyroid Service at University College London Hospital (UCLH), where she provides multidisciplinary, patient-centred care for complex endocrine conditions.
Alongside her clinical practice, Dr Chung is actively involved in endocrine research and clinical innovation. Her work focuses on improving outcomes for patients with hormone-related disorders through evidence-based treatment and advances in specialist care.
