Whether funnel chest surgery is necessary is usually related to the patient’s age, the degree of deformity, etc. and cannot be generalized. 1. Age: Generally, 2-5 years old is the best time for surgery. Traditional surgical methods include rib molding, sternal elevation, sternal rib elevation, sternal reversal, etc. Moreover, minimally invasive orthopedic treatment can be applied with the assistance of thoracoscopy at present. 2. Degree of deformity: ① If the funnel index is ≤0.21, it is a mild deformity, and no special treatment is needed; ② If it is an adult patient with funnel chest, the deformity of the chest is not serious, and it is not accompanied by impaired cardiorespiratory function and so on, it can be left without surgery for the time being; ③ If the funnel index is ＞0.21, it is a moderate or severe deformity, and it also affects the cardiorespiratory function, causes cardiorespiratory burden and so on, and requires surgical treatment. Therefore, for patients with funnel chest whether surgery should be combined with their own situation to consult a professional doctor, and follow the doctor’s advice to consider whether surgical treatment.