When a newborn has a brain injury, it is usually characterized by crying, irritability, excitement, convulsions, vomiting, and seizures. Brain injury in newborns may be due to the presence of hypoxia, which leads to irreversible damage to brain tissue, or it may be due to trauma to the skull and brain, which leads to damage to brain tissue. After the brain tissue is damaged, the normal brain tissue functions such as nerve conduction will be abnormal, and the newborn will have a series of manifestations such as crying, irritability, excitement, convulsions, vomiting, and convulsions. Therefore, it is recommended that parents should pay attention to whether their newborns are irritable, excited or vomiting when they find that their newborns have poor mental state or fall, and if so, they should pay attention to it and seek medical treatment in time, which can include cranial brain CT, MRI or brain function test to make a comprehensive judgment, and then treat the symptomatic condition as early as possible.