The more common causes of soft bumps on the head of newborns at birth are: first, scalp edema; second, scalp hematoma. Scalp edema, also known as birth tumor, is a subcutaneous edema caused by pressure on the scalp circulation, changes in vascular permeability and obstruction of lymphatic flow during childbirth, with indistinct borders and not limited by bone sutures, and generally disappears two to three days after birth. Scalp edema is a physiological phenomenon and does not require special treatment. Scalp hematoma is caused by the rupture of the subperiosteal vessels due to birth injury and the accumulation of blood under the periosteum, often due to fetal malposition, cephalopelvic disproportion, fetal head attraction or forceps assisted delivery, and small hematomas do not require treatment. For large hematoma with moderate hyperbilirubinemia or above, hematoma aspiration can be performed and pressure bandage can be applied, and vitamin K1 can be injected daily to prevent aggravation of bleeding.