Thyroid nodules are common...
Thyroid nodules are common. Clinically apparent nodules (ones your doctor can feel on examination of your neck) can be found in 4 % of adults.
Thyroid nodules are more common in women: 6.4 % women, 1.5 % men.
20% of women have nodules that can be seen on a thyroid ultrasound.
50% of women older than age 50 have nodules that can be seen on a thryoid ultrasound. The incidence of thyroid nodules goes up with age.
What kind of conditions cause nodules in the thyroid?
Only 5 - 6.5 % of thyroid nodules are cancer. Therefore most nodules are benign. There are many things that can cause a nodule in the thyroid:
Risk of Cancer
The risk of a thyroid nodule being cancer is influenced by several factors: