The treatment of a thyroid cyst depends on its size and location. Generally, a thyroid cyst is a benign lesion that presents as a space-occupying lump at the Adam's apple. If the cyst is relatively large, it might cause local compression symptoms such as pain, difficulty swallowing, and a hoarse voice. If the tumor cyst is small, it might not show any obvious symptoms, in which case it can be monitored over time. If the cyst is larger than four centimeters and causes discomfort such as local compression symptoms, corresponding surgical treatment is needed, or minimally invasive procedures such as cyst fluid aspiration or microwave ablation of the cyst.