This comprehensive book provides details on infants deformed scalps and the early detection of severe positional plagiocephaly. Many health professionals involved in infant health care believe that positional head shape changes are only temporary and will return to normal shape on their own. However, some of them may develop a deformed scalp shape later in life, which can result in malocclusion. Early and appropriate intervention may improve outcomes in patients with positional plagiocephaly; however, all healthcare professionals caring for infants must pay much more attention. The purpose of this book is to standardize the diagnosis and treatment of infants with positional plagiocephaly. This book addresses the prevention of head deformity in infancy as well as the most recently developed helmet therapy. Handbook of Positional Plagiocephaly is an official publication of the Japan Cranial Medical Examination and Treatment Society (JCMETS), published to raise awareness and foster understanding among health professionals involved in infant health care, such as pediatricians, pediatric neurosurgeons, pediatric surgeons, plastic surgeons, obstetricians, nurses, midwives, and parents. Professionals such as pediatricians and pediatric neurosurgeons contributed as chapter authors, resulting in content that is both comprehensive and easy to understand for readers of all levels.