This randomized controlled trial evaluates the safety and feasibility of drainless thyroid surgery for benign thyroid diseases using a sutureless hemostatic technique. Patients undergoing thyroidectomy are randomized to either drainless surgery or surgery with drain placement. The study compares postoperative outcomes, including complications, pain, hospital stay, and need for reintervention.

Thyroidectomy for benign thyroid diseases is commonly performed with routine placement of surgical drains to prevent postoperative hematoma or seroma. However, drain use may be associated with increased pain, infection risk, prolonged hospital stay, and patient discomfort. Advances in surgical techniques, particularly the use of sutureless energy-based hemostatic devices, have raised the possibility of safely omitting routine drain placement in selected patients.

This prospective randomized controlled trial aims to assess the safety and feasibility of drainless thyroid surgery in patients with benign thyroid diseases. Eligible patients undergoing thyroidectomy are randomly allocated into two groups: a drainless group, in which no postoperative drain is inserted, and a control group, in which a conventional closed suction drain is placed.

All surgeries are performed using a standardized sutureless technique for hemostasis. Patients are followed postoperatively to evaluate surgical and clinical outcomes, including postoperative bleeding or hematoma, seroma formation, wound complications, hypocalcemia, recurrent laryngeal nerve injury, postoperative pain, length of hospital stay, and need for reintervention or readmission.

The results of this study are expected to clarify whether drainless thyroid surgery using a sutureless technique is a safe and feasible alternative to conventional drain placement in benign thyroid surgery and may help optimize postoperative care and patient comfort

Inclusion Criteria:

1. Adult patients (≥18 years)
2. Benign thyroid disease confirmed by: clinical assessment, ultrasonography, and fine-needle aspiration cytology (Bethesda II)
3. Indicated for elective hemithyroidectomy or total thyroidectomy
4. Euthyroid or adequately controlled thyroid function

Exclusion Criteria:

• Thyroid malignancy or indeterminate cytology
• Re-operative thyroid surgery
• Retrosternal goiter
• Coagulation disorders
• Patients on anticoagulation that could not be safely discontinued
• Concomitant neck surgery
• Severe uncontrolled systemic illness (ASA IV or higher)

Individual participant data will not be shared because the study contains sensitive clinical and surgical information. Sharing individual-level data may compromise participant confidentiality.