👉 Megacephaly is a rare condition in which the brain and spinal cord are not fully developed, leading to difficulties with movement. It can be caused by a variety of factors such as birth defects or genetic mutations, and it affects children and adults alike. The symptoms of megacephaly vary depending on the specific cause. In some cases, people may have difficulty walking due to spasticity (spastic痉挛) or rigidity, while in others, they may experience severe muscle
