What is the reinjury rate for a hamstring strain?

• A. 5-10%
• B. 0-5%
• C. 20-40%
• D. 13.9-63.3%

Answer: (D)

Reinjury after a hamstring strain is a real and fairly common issue when players return to sport. The risk isn’t a single fixed number because studies measure reinjury in different ways: some track injuries within the same season, others over a longer period; some require imaging confirmation, others rely on clinical diagnosis; and rehabilitation quality and return-to-play criteria vary across teams and sports. Because of these differences, the reported reinjury rates span a wide range—from the mid-teens up to well over 60%. This broad range, roughly 13.9% to 63.3%, best reflects what’s observed in the literature. It highlights why clinicians emphasize thorough rehab, especially eccentric strength and proper progression, and strict, criteria-based return-to-sport decisions to mitigate the risk.