Babies always have nosebleeds, consider related to trauma, but also may be the emergence of coagulation function abnormalities, congenital nasal development abnormalities and other problems. 1. Trauma, if the baby usually like to dig the nostrils with their hands, it may lead to nasal mucous membrane damage, so it is easier to always have a nosebleed. 2. Abnormal coagulation function, if the baby has abnormal coagulation function, it may lead to bleeding, in addition to the skin, joint cavity and other parts of the blood may bleed. 3. Congenital nasal development abnormality, some babies have congenital nasal development abnormality after the nasal blood vessel deformity, increased sensitivity, may appear always nosebleed symptoms. Baby always nosebleed, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.