Crepitus is the name for the sounds that are audible under the skin and are made by the joints and tissues of the body. The sounds occur when two rough surfaces in the body collide or grind against each other. This can happen in conditions where the cartilage has worn away leaving the joints themselves to rub against each other; it can also occur where fractured bones scrape across each other. Cracking and popping in the neck may be painless or could be connected to arthritis and neck pain. Read more
Anyone can suffer an injury to their neck or back, but those engaging in physical activity, particular contact sports, are at a higher risk than most. Whilst athletes and sports-people are likely to be healthier and stronger than the general populace, the extra strain that repetitive motion and high impact activities can have on their systems makes wear and tear, as well as acute neck injury and neck pain, more likely.