Symptoms
The main symptom is an enlarged thyroid gland. The size may range from a single small nodule to a large neck lump.
Some people with a simple goiter may have symptoms of an underactive thyroid gland.
In rare cases, an enlarged thyroid can put pressure on the windpipe (trachea) and food tube (esophagus). This can lead to:
Breathing difficulties (with very large goiters), especially when lying on the back
Cough
Hoarseness
Swallowing difficulties, especially with solid food