Hypothyroidism: Symptoms, Causes and Treatment
Medically reviewed by Dr. Nikhil Singh
Last reviewed: 14 Jun 2026
Hypothyroidism, or an underactive thyroid, occurs when the thyroid gland does not make enough thyroid hormone. It is common, especially in women, and is usually managed effectively with daily medication.
Common Symptoms
- Tiredness and low energy
- Weight gain
- Feeling cold
- Dry skin and hair
- Constipation
- Low mood
How It Is Diagnosed
Hypothyroidism is diagnosed with a simple blood test that measures thyroid-stimulating hormone (TSH) and thyroid hormone levels.
How It Is Treated
Treatment usually involves a daily thyroid hormone replacement tablet, with the dose adjusted based on follow-up blood tests. A doctor will monitor your levels over time.
Frequently Asked Questions
Is hypothyroidism lifelong?
In most cases it is a long-term condition managed with daily medication, though the dose may change over time. Your doctor will monitor it with periodic blood tests.
Which test detects thyroid problems?
A TSH blood test is the usual first step, often along with T3 and T4 levels.
Related
Medical Disclaimer
The information provided in this article is for general informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this article.
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In most cases it is a long-term condition managed with daily medication, though the dose may change over time. Your doctor will monitor it with periodic blood tests.
A TSH blood test is the usual first step, often along with T3 and T4 levels.
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Written by Dr. Nikhil Singh
Last reviewed: 14 June 2026
Medical Disclaimer
The content provided on Zospital is for general informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. If you think you may have a medical emergency, call your doctor or emergency services immediately.