One year old baby drooling has many causes, for example, the following: 1, the child is almost teething when the gums are more itchy, stimulating the gum nerve will appear drooling; 2, oral diseases, such as mouth ulcers, mouth sores, the baby’s mouth is uncomfortable, so it will drool; 3, hypotonia, this situation will also cause the baby love drooling; 4, cold and fever, the baby’s resistance is very poor, a cold It is easy to catch a cold and fever, after the fever baby will drool, this situation should be given to the baby with some fever patch; 5, other pathological factors caused by, such as cerebral palsy, dementia can cause baby drooling, this situation should go to the hospital in a timely manner, under the guidance of the doctor for symptomatic treatment.