So hypothyroidism means the thyroid is underactive and hyperthyroidism means the thyroid is overactive.
Other causes include;
- Surgical removal of the gland due to cancer or another disorder
- Congenital abnormality whereby a baby is born without a properly functioning thyroid gland.
- Viral or bacterial infections - these can temporarily depress or stop hormone production in the thyroid. Sometimes this can become permanent.
- Medications - some medications can induce temporary hypothyroidism.
- Iodine deficiency - a diet severely deficient in iodine can lead to hypothyroidism.
Hypothyroidism can be diagnosed with a simple blood test called a TSH test. If you suspect you have hypothyroidism, make a note of your symptoms and talk to your doctor.
Treatment of hypothyroidism is best accomplished using levothyroxine such as Synthroid.
This synthetic form of the thyroid hormone T4 is an effective treatment for most people with hypothyroidism.
Other medications containing iron or antacids should be avoided as they can interfere with absorption of the thyroxine sodium.