Funnel chest suction cups are useful. For mild funnel chest, the funnel chest suction can be performed 1-2 hours a day through the funnel chest suction cup, and the correction of funnel chest can generally be achieved in about 2 years. For those who are not satisfied with the correction of chest wall deformity after funnel chest surgery, they can also be treated with funnel chest suction cups, which can reduce the pain caused by surgery and the results are also more satisfactory. In addition, more serious funnel chest can also achieve better correction of chest wall deformity after 2-3 years of treatment. Moreover, the funnel chest sucker is more economical than funnel chest surgery, which is 1/7-1/8 of the price of funnel chest surgery.