The shoulder ringing during the dumbbell side planks should be a popping sound of the shoulder joint, which is likely to be a precursor of frozen shoulder, mainly due to the unreasonable way of sports and exercise, or the injury of the shoulder joint caused by excessive sports and exercise, for this case, it is best to find a doctor of rehabilitation or physiotherapy for examination and treatment. In the future, when exercising, you must be gradual, the dumbbells should not be too heavy at the beginning, and slowly increase the weight of the dumbbells and the duration of the exercise in the process of continuous exercise.