TABLE 4

Guidelines and recommendations on managing subclinical hypothyroidism

OrganizationMild subclinical hypothyroidism (TSH 4.0–10.0 mIU/L)Severe subclinical hypothyroidism (TSH > 10.0 mIU/L)Key comments
US Preventive Services Task Force (2015)1Does not recommend routine screening or treatmentRecommends treatmentInsufficient evidence of benefit of treatment in patients without symptoms
European Thyroid Association (2013)10Watchful waiting, unless symptomatic
Consider treatment in younger individuals with persistent symptoms
Recommends treatmentEmphasizes a cautious approach, especially in older adults
American Association of Clinical Endocrinology and American Thyroid Association (2012)2Does not recommend routine screening or treatment in patients without symptoms
Consider treatment in select cases based on individual factors
Recommends treatmentHighlights individualizing treatment decisions and considering factors such as age, comorbidities, and symptom burden
American Thyroid Association (2014 update)3Similar to 2012 guidelines, emphasizing individualized approachRecommends treatment, particularly in younger individuals and those with specific risk factorsReinforces the importance of considering individual factors and the potential benefits of treatment in certain cases
American College of Physicians (2019)55Does not recommend routine screening or treatment unless symptoms are presentRecommends treatmentEmphasizes individualizing treatment based on patient factors
American Academy of Family Physicians (2021)54Does not recommend routine screening or treatment unless symptoms are presentRecommends treatmentHighlights the lack of evidence for routine screening and treatment in patients without symptoms
  • TSH = thyroid-stimulating hormone