The TOETVA technique, also known as endoscopic or scarless thyroid surgery, requires strict adherence to specific patient selection criteria to ensure patient safety and optimal outcomes. These criteria include: The thyroid gland's diameter must be less than 10 cm. The thyroid gland's volume must be less than 45 ml. The largest thyroid nodule's diameter must be less than 5 cm. Diagnosis of a benign condition such as a thyroid cyst or nodular goiter. Diagnosis of follicular neoplasia. For malignant conditions, currently, only micro-papillary thyroid cancer without suspicion of spread is considered suitable.