Symptoms:

Most thyroid nodules produce no symptoms.

Large nodules can press against other structures in the neck. Symptoms may include:

• Difficulty breathing
• Difficulty swallowing
• Goiter
• Hoarseness or changing voice
• Pain in the neck

Nodules that produce thyroid hormones will cause symptoms of hyperthyroidism, including:

• Bounding pulse
• Clammy skin
• Increased appetite
• Nervousness
• Restlessness
• Skin blushing or flushing
• Weight loss

Thyroid nodules are sometimes found in people who have Hashimoto's disease. Hashimoto's disease may cause hypothyroidism, with symptoms such as:

• Dry skin
• Facial swelling
• Fatigue
• Hair loss
• Intolerance to cold
• Unintentional weight gain

Signs and tests:

Very often, nodules produce no symptoms. Doctors will find thyroid nodules only during a routine physical exam or imaging tests that are done for another reason. However, thyroid nodules that are big enough to feel during a physical exam occur in a few people.

If the doctor finds a nodule or you have symptoms of a nodule, the following tests may be done:

• Fine needle aspiration biopsy
• Thyroid scan
• Thyroid ultrasound
• TSH level