Petus excavatum is caused by two factors: calcium deficiency and lack of exercise during the development of adolescents.

Generally, it is not directly related to height

Active calcium supplementation and active exercise can alleviate it to a certain extent

If the funnel is serious and affects the cardiopulmonary function, you can do Surgical correction. But it rarely needs to be done.

Generally, efforts are made to correct it through calcium supplementation and physical exercise.