Besides the usual symptoms, are there any other things I should know about how ahyperactive thyroid can affect men?
Having too much thyroid hormone (hyperthyroidism) can lead to muscle wasting and weakness, especially in thighs and upper arms. It can also upset the balance between the principal male sex hormone (testosterone) and the female sex hormone (estradiol) in the body; Sperm production may be impaired. There may be breast tenderness or enlargement. Libido is reduced and difficulty with erection is common. If the thyroid gland is the culprit, these problems clear up when the thyroid hormone balance is restored to normal.
