Pain

Pain is an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage

It can affect individuals of any age and arises across multiple organ systems, functioning primarily through the peripheral and central nervous systems Clinically and pathophysiologically, it encompasses acute or chronic presentations driven by nociceptive mechanisms involving tissue inflammation and injury, neuropathic mechanisms involving direct nervous system lesions, or nociplastic mechanisms marked by altered pain processing and central sensitization Presentation ranges from localized to di...

It can affect individuals of any age and arises across multiple organ systems, functioning primarily through the peripheral and central nervous systems

Clinically and pathophysiologically, it encompasses acute or chronic presentations driven by nociceptive mechanisms involving tissue inflammation and injury, neuropathic mechanisms involving direct nervous system lesions, or nociplastic mechanisms marked by altered pain processing and central sensitization Presentation ranges from localized to diffuse sensations—such as sharp, aching, burning, or throbbing discomfort—often accompanied by emotional distress and autonomic responses