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
Repetitive stimulation increases pain sensation, the probable cause is
assistant
The correct answer is  Repetitive stimulation causes release of chemical mediators such as histamine, bradykinin, prostaglandins etc, which increase the sensitivity of nociceptors.