Why do your fingers crunch?

The characteristic crackling of the joints is absolutely familiar to everyone. For many people, it seems very unpleasant, while others like to crack their fingers or elbow joints. We'll figure out why the fingers crunch, and indeed what caused the crunch of the joints.

Some people believe that crunching joints -anomalous phenomenon and indicates a physiological disorder. They argue as follows: the surface of the healthy articular cartilage is smooth, so if the joints crunch, the cartilages in them have roughness, therefore, they are unwell.

The real cause of cod is not in damagesurface cartilage. Between the cartilage in the synovial membrane there is a synovial fluid acting as a lubricant. With a sharp movement, the cavity in which this liquid is stored expands rapidly, the pressure drops, and the gases dissolved in it - nitrogen, oxygen and carbon dioxide - boil (this behavior of the gas is called cavitation). If you listen carefully, then the crackling of your fingers resembles the sound of a bursting bubble. In fact, this is what happens in the joint at the time of cod. Therefore, all people crunch the joints of the fingers, and this is not an anomaly.

Another reason is the displacement of the ligaments andtendons. In some people, the position of these tissues can change when the joint moves. When the joint is stretched, the tendon instantly returns to its "native" position. At the same time you can hear the crunching of fingers, toes, hands, kneecaps, cervical vertebrae, etc.

The reasons given for the crunch are the mostcommon. However, not always such a crack is healthy. Sometimes he can really testify about any violations. At the same time, you need to sound an alarm and consult a doctor only if the joint crunch causes pain in you.