A 5-month-old baby’s head is a little tilted, which may be caused by congenital muscular strabismus, spasmodic strabismus, abnormal development of cervical vertebrae and so on. It can be corrected by physical therapy, changing habits and surgical treatment. 1. congenital muscular cervical tilt: it may be related to difficult labor, difficult labor leads to ischemia, spasm of the neck muscles of the newborn, etc. Babies within 1 year of age cervical tilt can choose to give local hot compresses, massage the sternocleidomastoid muscle group and other treatments, which can improve the spasm of the muscle state. If necessary, surgery can be performed after one year of age. 2. Spasmodic cervical tilt: It may be caused by breastfeeding on one side for a long time and sleeping in the same direction for a long time. The symptoms can be relieved if the mother breastfeeds from the opposite side of the affected side and if the baby’s head is turned to the opposite direction of the affected side during sleep. 3. Abnormal development of cervical vertebrae: Most of the babies with crooked head caused by abnormal development of cervical vertebrae choose to have surgical treatment after the age of 5, such as cervical vertebrae osteotomy and orthopedic surgery. 5 months baby head tilted, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to identify the causes and give appropriate treatment.