system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
What is the most common problem following surgical treament of pterygium?
assistant
The correct answer is  Recurrence of the pterygium after surgical excision is the most comon problem after pterigium excision and is seen in 30-50 % of the cases. Reference : AK Khurana 7th edition page.89