Scalp hematoma in newborns is mainly considered to be caused by several reasons. First, birth injuries are the most common cause of scalp hematoma in newborns. When the child is in labor, the doctor will use an induction device to induce labor, which will cause a scalp hematoma on the child’s scalp. If the scalp hematoma is not very severe, most of it can absorb itself. If the scalp hematoma is particularly severe, surgical treatment is required. Second, it is caused by vitamin K deficiency. In this case, the child will have a scalp hematoma and bleeding from other parts of the body due to vitamin K deficiency, resulting in clotting disorders. The child may have bleeding from the gums, mouth, or in severe cases, intracranial bleeding, which can be dangerous. Parents should give their children vitamin K supplementation in a timely manner to prevent systemic bleeding.