Sprains and Strains

<p>When you injure a wrist, ankle, knee or other joint, you need to know what the injury is before you can treat it. Sprains occur when you tear or over-stretch a ligament, while a <a href="/health/sprains-strains-minor-pains/what-is-a-muscle-strain">strain</a> is an injury to a muscle or tendon. Other sources of pain include muscle <a href="/health/types-exercise/why-am-i-sore">soreness</a> or spasms, arthritis, and <a href="/health/bruises-contusions/why-do-bruises-form">bruising.</a></p>