6. Heart Attack
A heart attack, or a myocardial infarction, results when a blood clot interrupts blood flow to the heart. The sudden attack is typically characterized by shooting pains up the left arm, an early warning sign that should prompt a 9-1-1 call immediately and possibly save a life.
7. Rheumatoid Arthritis
Rheumatoid arthritis, a chronic inflammatory disease, often causes inflammation in the elbow joint. This compresses the nerves of the arm, leading to pain, numbness, and tingling in the shoulder, forearm, wrist, and fingers.
8. Herniated Disk
A herniated disk inflicts the rubbery spinal disks, which act as cushions between the individual bones in the spine. However, if a disk slips or ruptures, the surrounding vertebrae and nerves will be no longer protected, and pain, numbness, or inflammation will result in the nearby arm.
Tendinitis is a repetitive stress injury that commonly affects the shoulder, wrist, or elbow due to a sports injury (i.e. golf or baseball). It occurs with the inflammation of a tendon, which connect muscle to bone and protect the attaching joint.
A sprain occurs when a ligament stretches past its capacity and tearing occurs. A sprain is different from a strain, the stretching or tearing of muscle or tendon, though both sprains and strains are common sources of arm, shoulder, and wrist pain.