A<unk> , also known as a torn ligament, is an injury resulting in the stretching or tearing of ligaments within a joint, often caused by a sudden movement abruptly forcing the joint beyond its functional range of motion. Ligaments are tough, inelastic fibers made of collagen that connect two or more bones to form a joint and are important for joint stability and proprioception, which is the body's sense of limb position and movement.<unk> s can occur at any joint but most commonly occur in the ankle, knee, or wrist. An equivalent injury to a muscle or tendon is known as a<unk> . The majority of<unk> s are mild, causing minor swelling and bruising that can be resolved with conservative treatment, typically summarized as RICE: rest, ice, compression, elevation. However, severe<unk> s involve complete tears, ruptures, or fractures, often leading to joint instability, severe pain, and decreased functional ability. These<unk> s require surgical fixation, prolonged immobilization, and physical therapy.
Sprain
Bone fracture
Back injury
Strain (injury)
Back strain
Swayback
Whiplash 
Whiplash