The deviated nasal septum of a seven-year-old child may be related to physiological development, trauma, etc., and need to go to the ENT department. If it is only slightly deviated, it can be temporarily observed; if one side of the nasal cavity has poor ventilation and drainage, it may need surgical treatment. Deviated nasal septum refers to the phenomenon that the nasal septum deviates from the center line and bends to one side or both sides. 1. Physiological development: the nasal septum is composed of bone and cartilage. During the growth and development of the child, the growth of each piece of bone and cartilage is not balanced, which will lead to the septum being squeezed to one side. If it is only a slight deviation, the child does not have nasal congestion, breathlessness and other discomfort, can be temporarily observed and followed up, if necessary, surgery. 2. Trauma: seven-year-old children active, such as accidental fall nose after the septum deviation, may appear nasal congestion, headache, pus and other symptoms, and even secondary sinusitis. At this time, you need to go to the ENT department to improve the nasopharyngoscopy. Cranial CT examination, according to the situation of the deviated septum, if one side of the nasal cavity is completely blocked, poor ventilation, can follow the doctor’s prescription for surgical treatment. If the symptoms of nasal septum deviation in a seven-year-old child are more serious, it is recommended to seek medical treatment in time, so as not to affect the baby’s learning and growth and development.