This is usually caused by fluids or cold blocking the flow of blood and energy in the body.

Coldness can invade your body when you live in cold, rainy climates, sit on damp surfaces, wade in cold water, or live in a damp environment. When cold gets trapped in the body, you have severe pain in the joint or muscle, tingling and limited movement.

Damp blockage is characterized by dull heavy pain, sometimes numbness, with soreness and swelling of the muscles, and pain in a fixed location.

Cold and dampness can stagnate in your body if you have a weak kidney and/or spleen. The pain from stagnant cold feels the same as pain from external invasion of cold, it's just more chronic.

Acupuncture and herbs relieve the fluid buildup and strengthen the organs to maintain proper distribution of fluilds.