Sprain
A sprain involves a ligament—the connective tissue that joins bone to bone and stabilizes a joint. Sprains range from stretching to partial or complete tears.
Strain
A strain involves muscle, the muscle–tendon junction, or tendon. Symptoms can include pain, spasm, weakness, swelling, and reduced function.
The record beyond a diagnosis
A label alone does not show impact. Record range-of-motion findings, prescribed restrictions, missed work, follow-up recommendations, and the daily tasks you cannot perform normally. Ask the treating clinician what warning signs require urgent care.
Get medical help first.
Call 911 or seek urgent care for severe or worsening symptoms, trouble breathing, confusion, weakness, loss of sensation, or any emergency. This site cannot assess your condition.