Subclinical Hypothyroid

subclnical hypothyroid (SCH), defined by a normal total or free T4 level and a midly Elevated TSH, is common in adults. Subclinical hypothyroid is a risk factor for developing hypothyroidism complication. the goal of screening is to identify and treatment patients with sublinical hypothyroid before they develop these complication. The sample size of this study was the articles indexed in pubmed,ovid, tripdatabase, new spring link black coehrane, Elsevirer, Embase and contained the terms subclinical hypothyroid, Anti-tpo, Thyrotropin, levothyroxine trapy. 831 articles were found that 75 articles were investigated for this issue. The results are discussed under. The subtile such as subclinical hypothyroid, screening for subclinical hypothyroid, Indication of treatment of Subclinical hypothyroid. In this summary, we tried to review the current literature about definition, Indection of screening and treatment of subclinical hypothyroid and reach a comprehensive guidline for practical significance of this subject in routines practice.