This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
What is the most common life-threatening complication of thyroidectomy? 
Select and explain. 
A. Haemorrhage, B. Tracheal collapse, C. Laryngeal edema, D. Bilateral vocal cord palsy
A: Haemorrhage
Answer: A: Haemorrhage 
Explanation: Haemorrhage is the most frequent life-threatening complication of thyroidectomy. Around 1 in 50 patients will develop a haematoma, and in almost all cases this will develop in the first 24 hours.Ref: Bailey and love 27e, page no: 815