Hyperthyroidism Symptoms

Hyperthyroidism is suggested by a number of signs and symptoms. Patients with mild disease usually experience no symptoms. In patients older than 70 years, the classical manifestations may also be absent. In general, the symptoms become more obvious as the condition worsens. The symptoms are usually related to an increase in body metabolism. Common symptoms are listed below:

  • Excessive sweating
  • Heat intolerance
  • Increased bowel movements
  • Tremor
  • Nervousness; agitation
  • Rapid heart rate
  • Weight loss
  • Fatigue
  • Decreased concentration
  • Irregular and scant menstrual flow

In older patients, irregular heart rhythms and heart failure can occur. In its most severe form, untreated hyperthyroidism may result in " thyroid storm," a condition involving high blood pressure, fever, and heart failure.


Last Editorial Review: 10/10/2006




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