Adults with funnel chest will cause both physiological and psychological harms. Physiological aspect manifests itself in the form of compression of the heart and infection of the lungs, etc.; psychological aspect manifests itself in the form of psychological disorders and so on. 1. Physiological aspect: Adult funnel chest may compress the heart and lungs, resulting in displacement of the heart and compression of the lungs, which may lead to respiratory difficulties and other symptoms in severe cases. In addition, impaired ventilation can cause bacterial infection, leading to lung infection. 2. Psychological aspects: Adults with funnel chest can cause serious psychological disorders. Due to the existence of this deformity, it can lead to depression, anxiety and other manifestations, thus inducing mental disorders. Note that adults with funnel chest should go to the thoracic surgery department of the regular hospital in time, and take the regular way to correct the deformity.