One year old baby flying in an airplane is generally no serious harm, but may make the lesion by shock, eardrum irritation, increase the chances of infection and so on. 1. Scare: one year old baby, in the airplane, in the take-off and landing will have a greater noise, and the baby’s age is small, it is easy to be frightened, so that there is more than crying. 2. Eardrum irritation: one-year-old baby eardrum is thin, in the process of airplane takeoff and landing, may be due to the pressure inside and outside the ear changes, will make the eardrum is squeezed, thus causing the baby to appear aviation tinnitus. 3. Increase the chances of infection: the space in the airplane cabin is a sealed environment, and the baby’s age is small, if the adults around the fever, cold and other diseases, it is possible to increase the baby’s chances of infection diseases. One year old baby after the airplane if there are abnormalities, it is recommended to seek medical attention in a timely manner.