Hypothyroidism - Hypothyroidism Hypothyroidism is a Clinical condition that results from the underproduction of the thyroid hormones T4 and T3

Hypothyroidism Hypothyroidism is a Clinical condition that results from the underproduction of the thyroid hormones T4 and T3. Sub-clinical hypothyroidism = asymptomatic; mild thyroid failure; mild elevation of TSH; normal levels of T4 and T3. Symptoms There are many symptoms that are present in those with hypothyroidism, below are just some of the most common: • Fatigue • Depression • Weight gain • Weakness • Constipation • Forgetfulness (may present with Dementia-like symptoms – always test TSH in these patients) Others: • Bilateral eyelid oedema • Decreased HR • Infertility • Goitre • Coarse hair Risk factors: female; 30-50; other autoimmune disorders; post-partum thyroiditis; radiological procedure; iodine deficiency; amiodarone or lithium drug use. Causes Iodine deficiency is the most common cause of hypothyroidism worldwide. In iodine-replete individuals hypothyroidism is frequently caused by Hashimoto's thyroiditis, or otherwise as a