The clavicle is not obvious may be a normal phenomenon, obesity, or congenital clavicle dysplasia, etc., for different reasons to take different treatments, including exercise to lose weight, medication and so on. 1. Normal phenomenon: some people have narrow shoulders, and their clavicle is not obvious, this is a normal phenomenon, there is no good way to improve this phenomenon, generally do not need to deal with it. 2. Obesity: obese people will be due to fat accumulation in the vicinity of the clavicle, resulting in the clavicle is not obvious, it is recommended to actively lose weight and reduce fat, exercise, exercise, chest expansion, when the weight loss clavicle is not obvious will be improved. 3. Congenital dysplasia: if there is congenital dysplasia, should be in infancy, follow the doctor’s instructions to supplement calcium, vitamin D and so on to promote the development of bones, but if you miss the developmental period, there is no impact on the life of the words, you can not have to treat. If it is not caused by obesity, you should go to the hospital to take X-ray to check the development of the clavicle, and under the guidance of the doctor for treatment.