The cause of pain whenever it rains may be traumatic arthritis caused by hand crushing by machines, and the pain will occur when it rains due to the low temperature and the local blood supply obstacle. Traumatic arthritis is mainly caused by various reasons of joint cartilage trauma, the main manifestation of joint pain, the early onset of mild intermittent pain. Pain is often associated with weather changes, due to trauma resulting in local tissue damage, although the damage will be repaired by the body, but the joints repaired, due to the local blood circulation and nerve distribution is different from the normal physiological structure, for the temperature changes in the perception of more sensitive, it is easy to appear pain symptoms. For patients with a history of trauma in the falling temperatures of the weather need to do a good job of local warm measures, if the local pain is obvious, affecting the normal life need to consult a doctor in a timely manner to identify the cause of the disease, symptomatic treatment.