Purple shoulders are usually caused by trauma to the shoulder joint, such as fracture of the bone due to an external collision, or strain or tear of the soft tissues due to lifting and carrying heavy objects, which may result in local bruising and swelling. During the absorption process, these bruises may appear as purple subcutaneous tissues. It is usually necessary to go to the hospital for a radiograph and an MRI of the shoulder joint to clarify the specific damage to the bones and soft tissues. If there is a fracture, surgical internal fixation is usually performed. If there is a tear, an anastomosis of the torn end will be performed. In case of simple strain or contusion caused by collision with skin and subcutaneous tissues, the shoulder joint can be allowed to fully relax and rest, and cold compresses can be applied during the acute phase of injury, followed by hot compresses after 48 hours to effectively promote the metabolism and absorption of local bruising. You can also take oral medications to relieve swelling and pain and to activate blood circulation and remove blood stasis, such as Tong Piao Capsules and Da Qi Li Capsules, which can have certain therapeutic effects.