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Dr. Douglas Turner’s Bio | Q&A Archive

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Hypothyroidism - Symptoms

Description

An in-depth report on the causes, diagnosis, treatment, and prevention of hypothyroidism.

Alternative Names

Autoimmune thyroiditis; Hashimoto's thyroiditis

Symptoms:

Early Symptoms. Early symptoms of hypothyroidism are subtle and, in older people, can be easily mistaken for symptoms of stress or aging. They include:

  • Chronic fatigue
  • Difficulty concentrating
  • Sensitivity to cold
  • Headache
  • Muscle and joint aches
  • Weight gain, despite diminished appetite
  • Constipation
  • Dry skin
  • Early puberty
  • Menstrual irregularities (either heavier-than-normal or lighter-than-normal bleeding)
  • Milky discharge from the breasts (galactorrhea)

Later Symptoms. As free thyroxine levels fall over the following months, other symptoms may develop:

  • Impaired mental activity, including problems with concentration and memory, particularly in the elderly.
  • Depression. Some doctors believe that even mild thyroid failure may increase susceptibility to major depression.
  • Muscle weakness, numbness, pain, and cramps. This can cause an unsteady gait. Muscle cramps are common, and carpal tunnel syndrome or symptoms similar to arthritis sometimes develop. In some cases, the arms and legs may feel numb.
  • Numbness in the fingers.
  • Hearing loss.
  • Husky voice.
  • Continuing weight gain and possible obesity, in spite of low appetite.
  • Some people experience less sweating, and their skin becomes pale.
  • Skin and hair changes. Skin becomes pale, rough, and dry. Patients may sweat less. Hair coarsens and even falls out. Nails become brittle.
  • Snoring and obstructive sleep apnea (a condition in which in the soft palate in the throat collapses at intervals during sleep, thereby blocking the passage of air).

Symptoms in Infants and Children

All babies are now screened for hypothyroidism in order to prevent retardation that can occur if treatment is delayed. Symptoms of hypothyroidism in children vary depending on when the problem first develops.

  • Most children who are born with a defect that causes congenital hypothyroidism have no obvious symptoms. Symptoms that do appear in newborns may include jaundice (yellowish skin), noisy breathing, and an enlarged tongue.
  • Early symptoms of undetected and untreated hypothyroidism in infants include feeding problems, failure to thrive, constipation, hoarseness, and sleepiness.
  • Later on, symptoms in untreated children include protruding abdomens; rough, dry skin; and delayed teething. Rarely, in advanced cases, yellow raised bumps (called xanthomas) may appear under the skin, the result of cholesterol build-up.
  • If they do not receive proper treatment in time, children with hypothyroidism may be extremely short for their age, have a puffy, bloated appearance, and have below-normal intelligence. Any child whose growth is abnormally slow should be examined for hypothyroidism.

Resources

References

Abalovich M, Amino N, Barbour LA, Cobin RH, De Groot LJ, Glinoer D, et al. Management of thyroid dysfunction during pregnancy and postpartum: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2007 Aug;92(8 Suppl):S1-47.

Allahabadia A, Razvi S, Abraham P, Franklyn J. Diagnosis and treatment of primary hypothyroidism. BMJ. 2009 Mar 26;338:b725. doi: 10.1136/bmj.b725.

American Academy of Pediatrics, Rose SR; Section on Endocrinology and Committee on Genetics, American Thyroid Association, Brown RS; Public Health Committee, et al. Update of newborn screening and therapy for congenital hypothyroidism. Pediatrics. 2006 Jun;117(6):2290-303.

Brent GA, Larsen PR, Davies TF. Hypothyroidism and thyroiditis. In: Kronenberg: HM, Shlomo M, Polonsky KR, Larsen PR, eds. Williams Textbook of Endocrinology. 11th ed. Philadelphia, Pa: Saunders Elsevier; 2008:chap 12.

Fatourechi V. Subclinical hypothyroidism: an update for primary care physicians. Mayo Clin Proc. 2009;84(1):65-71.

Gyamfi C, Wapner RJ, D'Alton ME. Thyroid dysfunction in pregnancy: the basic science and clinical evidence surrounding the controversy in management. Obstet Gynecol. 2009 Mar;113(3):702-7.

Kliegman RM. Hypothyroidism. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 566.

Mestman JH. Thyroid and parathyroid diseases in pregnancy. In: Gabbe SG, Niebyl JR, Simpson JL, eds. Obstetrics: Normal and Problem Pregnancies. 5th ed.Philadelphia, Pa: Elsevier Churchill Livingstone; 2007:chap 38.

Ochs N, Auer R, Bauer DC, Nanchen D, Gussekloo J, Cornuz J, Rodondi N. Meta-analysis: subclinical thyroid dysfunction and the risk for coronary heart disease and mortality. Ann Intern Med. 2008 Jun 3;148(11):832-45. Epub 2008 May 19.

Roberts LM, Pattison H, Roalfe A, Franklyn J, Wilson S, Hobbs FD, et al. Is subclinical thyroid dysfunction in the elderly associated with depression or cognitive dysfunction? Ann Intern Med. 2006 Oct 17;145(8):573-81.

Rodondi N, Aujesky D, Vittinghoff E, Cornuz J, Bauer DC. Subclinical hypothyroidism and the risk of coronary heart disease: a meta-analysis. Am J Med. 2006 Jul;119(7):541-51.

Stagnaro-Green A. Maternal thyroid disease and preterm delivery. J Clin Endocrinol Metab. 2009 Jan;94(1):21-5. Epub 2008 Nov 4.

Vaidya B, Pearce SH. Management of hypothyroidism in adults. BMJ. 2008 Jul 28;337:a801. doi: 10.1136/bmj.a801.

Villar HC, Saconato H, Valente O, Atallah AN. Thyroid hormone replacement for subclinical hypothyroidism. Cochrane Database Syst Rev. 2007 Jul 18;(3):CD003419.

  • Reviewed last on: 5/21/2009
  • Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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