Shoulder soreness after swimming may be related to shoulder strain, shoulder tissue strain, shoulder disease aggravation and other factors, according to the cause of the disease can be relieved by resting, local hot compresses, medication and other ways. 1. Shoulder strain: shoulder pain after swimming may be caused by shoulder strain, need to pay attention to rest, reduce shoulder activities. 2. Shoulder tissue strain: shoulder pain after swimming may also be shoulder tissue strain, caused by improper swimming or posture. You can reduce shoulder activities, local cold compresses for 72 hours and then hot compresses, pain can be oral diclofenac sodium extended-release tablets and other painkillers. 3. Shoulder disease aggravation: It may also be the aggravation of previous shoulder disease, and the aggravation of the condition after swimming leads to pain. Need to rest, but also feasible local baking, hot compresses, oral losoprofen sodium capsules. Shoulder pain after swimming, it is recommended to go to the regular hospital in time, by the doctor to determine the treatment plan, follow the doctor’s instructions for medication.