
A dislocated shoulder usually happens after a heavy fall onto the arm. It takes between 12 and 16 weeks to heal after the shoulder has been put back into place.Dislocating your shoulder means the ball joint of your upper arm has popped out of the shoulder socket. The surrounding tissues may also have become overstretched or torn.The shoulder is one of the easiest joints to dislocate because the ball joint sits in a very shallow socket. This makes the arm extremely mobile and able to move in many directions, but also means it's not very stable.Most people dislocate their shoulder during a contact sport such as rugby, or in a sports-related accident. In older people the cause is often falling onto outstretched hands, for example after slipping on ice. How do I know if I've dislocated my shoulder?In most cases of dislocated shoulder, the ball part of the joint pops out in front of the shoulder socket. This is usually obvious because:●you won't be able to move the arm and it will be extremely painful ●the shoulder will suddenly look square rather than round ●you may be able to see a lump or bulge (the top of the arm bone) under the skin in front of your shoulderIt's much more unusual for the bone to pop out of the back of the shoulder joint. This usually happens after an epileptic fit or electrocution injury and is less easy to spot.Don't try to pop your arm back in yourself, as this could damage the tissues, nerves and blood vessels around the shoulder joint.