Hypothyroidism

Hypothyroidism is a common endocrine disorder caused by an underactive thyroid gland, resulting in reduced production of thyroid hormones—thyroxine (T4) and triiodothyronine (T3). These hormones are essential for regulating metabolism, energy, and overall body function. When levels drop, the body’s processes slow down, leading to a wide range of symptoms.

Typical signs of hypothyroidism include persistent fatigue, weight gain despite unchanged diet, cold intolerance, dry skin, constipation, hair thinning, and depression. In severe cases, it can cause swelling of the face, hoarseness, and slowed heart rate. The most frequent cause is Hashimoto’s thyroiditis, an autoimmune condition where the immune system attacks the thyroid. Other causes include iodine deficiency, certain medications, or surgical removal of the thyroid gland.

Diagnosis is confirmed through blood tests measuring thyroid-stimulating hormone (TSH) and free T4 levels. Treatment usually involves daily administration of synthetic thyroid hormone (levothyroxine), which restores normal hormone levels and alleviates symptoms. Regular monitoring is essential to adjust dosage and maintain balance.

Lifestyle management, including a balanced diet and awareness of medication interactions, supports treatment effectiveness. With proper therapy and monitoring, individuals with hypothyroidism can lead healthy, active lives and prevent long-term complications.