Abstract

Siddha System of Medicine is one of the ancient traditional medical system is being practiced in the Southern part of India and addressed as one of the greatest arts of Tamil Nadu. The Line of treatment is based on the Panchabootha principle (Five element theory) which is blended with human nature and the diagnosis is rooted through Naadiparikshai (Pulse reading). Vatham(Wind), Pitham(Fire), Kapahm(Water) which are the Thridosha humours of the physiological mechanism stands for the wellness of human being. when they deviates from the state it bring the disease. There are abundant herbs are useful in treating hormonal imbalance in medical practice which falls under the Siddha herbal kingdom. Hypothyroidism is divided in primary and secondary. Primary hypothyroidism is most commonly caused by chronic auto immune thyroiditis, less common causes radioiodine treatment and thyroidectomy. Secondary hypothyroidism due to failure of adequate thyroid stimulating hormone secretion from the pituitary gland. Thyroid abnormalities were diagnosed on the basis of laboratory results [serum FT3, FT4, and TSH].  The prevalence of hypothyroidism in the developed world is about 4-5% and the subclinical hypothyroidism is about 4-15%.