Causes for muscle and joint pain can be activity related, whether that be a lack of activity resulting in a weakening of muscles and tendons, repetitive motion leading to excessive or improper wear and tear, or sudden motion, especially if it’s in a way the body is not used to moving in. The most common cause is injury to the bones, muscles, tendons, ligaments, cartilage or nerves, due to a car accident, fall, fracture, sprain, or dislocation. Musculoskeletal pain can also be caused by overuse, leading to a wearing down of cartilage in the joints or lactic acid buildup in the overworked muscles. Poor posture can contribute as well since certain muscles will be weakened or overstretched and others become overused and tight leading to painful imbalances of the musculoskeletal system.
An unhealthy lifestyle that includes a lack of sleep, stress, dehydration, the consumption of drugs and alcohol, or vitamin deficiencies can lead to joint and muscle pain as well. It is also a symptom of many illnesses, particularly because they create inflammation in the body as an immune system response. An infection like the common cold, flu, pneumonia, or mononucleosis, for instance, will have this effect. Chronic fatigue syndrome, Fibromyalgia, Arthritis, Lupus, Lyme disease, Multiple Sclerosis, and Anemia also have musculoskeletal pain as a symptom.