The protruding tip of the clavicle on one side of a child may be caused by clavicle injury, unilateral compression, scoliosis, and so on. 1. Clavicle injury: the most common in infants and young children is that this side of the clavicle in the birth process due to the birth canal extrusion or the use of forceps was damaged, appearing asymmetric. 2. Unilateral compression: children in the growth and development period, long-term excessive lateral lying to one side, will cause excessive pressure on this side of the clavicle, resulting in excessive bending and protrusion. 3. Scoliosis: Early symptoms of scoliosis include unequal shoulders and asymmetrical thorax. The clavicle may be involved, and one side of the clavicle protrudes. The tip of the clavicle protrudes on one side of the child, there may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.