What are the Signs and Symptoms of Hyperthyroidism?

Signs and symptoms of Hyperthyroidism may include:

  • fast heart rate (100-120 beats per minute or higher)
  • slightly elevated blood pressure
  • nervousness or irritability
  • increased perspiration
  • muscle weakness (especially in the shoulders, hips, and thighs)
  • trembling hands
  • weight loss, in spite of a good appetite
  • hair loss
  • fingernails partially separated from finger-tips (onycholysis)
  • swollen fingertips (achropachy or clubbing)
  • retracted (pulled back) upper eyelids
  • skin changes
  • increased frequency of bowel movements
  • goiter (an abnormal swelling in the neck caused by an enlarged thyroid gland)
  • in women, decreased menstrual flow and less frequent menstrual flow
  • in men, slight swelling of the breasts
  • in Graves’ disease: thick or swollen skin over the shin bones (pretibial myxedema); eyes that seem to be popping out of their socket (exophthalmos).

Most of these conditions will return to normal after the hyperthyroidism is treated. Certain others may be treated separately.