Hashimoto’s Thyroiditis

Hashimoto’s thyroiditis, also called chronic autoimmune or lymphocytic thyroiditis, is the most common cause of hypothyroidism in many countries. In this condition, the body’s own immune system produces antibodies against thyroid peroxidase and thyroglobulin, leading to inflammation, gradual destruction of thyroid tissue, and reduced hormone production. The gland may enlarge into a firm, rubbery goiter or sometimes shrink over time.

Early symptoms are often mild or absent, but as thyroid function declines, people may feel tired, gain weight, feel cold, have dry skin, constipation, muscle aches, low mood, and hair thinning. Diagnosis is confirmed by elevated TSH, low or normal?low T4, and positive thyroid antibodies on blood testing.

Management focuses on hormone replacement, usually with daily levothyroxine, started at a low dose and adjusted by monitoring TSH. There is no cure for Hashimoto’s itself, but adequate treatment can normalize metabolism and relieve symptoms. Regular follow?up, a balanced diet, and attention to cardiovascular and bone health support long?term well?being in affected individuals.