Thyroid cancer may not cause any symptoms at first, but as it grows, it can cause signs and symptoms such as swelling in the neck, voice changes, and difficulty swallowing. The following are some of the most common symptoms of thyroid cancer:

• A lump (nodule) that can be felt through the skin on your neck
• A feeling that close-fitting shirt collars are becoming too tight
• Changes to your voice, including increasing hoarseness
• Difficulty swallowing
• Swollen lymph nodes in your neck
• Pain in your neck and throat

Other symptoms of thyroid cancer that may occur after the condition has reached an advanced stage include:

• Difficulty breathing or swallowing
• Loss of voice (hoarseness)
• Swollen lymph nodes in your neck
• Tiredness
• Loss of appetite
• Nausea and vomiting
• Unexpected weight loss
• A red face (flushing)
• Softer poos or diarrhea
• Weight loss
• A cough

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