Can i improve pectus excavatum naturally by exercising? i am 22

It Depends: It will depend on the severity of your condition. If you have a mild type, the yes you can improve it with exercise. If your condition is severe, an evaluation is needed to determine your physical restrictions specifically in relation with your breathing/lung function and also heart condition. So, in severe cases, no exercise would not improve your pectus excavatum.

To a degree: Exercise can improve muscle mass of say your pects. This could also serve to accentuate the pectus defect. If the defect is truly disturbing to you, you should know there are alternatives such as surgery. Nuss procedure can be viewed on you tube. Most surgeons doing this procedure are pediatric surgeons. 22 y can still qualify you. Contact a pediatric surgeon in your area if you have questions.