👉 Hemicrachia is a medical condition that occurs when the muscles of the neck and shoulders are not properly aligned. This can lead to pain, stiffness, and difficulty breathing. It's also known as "stiff neck" or "neck stiffness." Hemicrachia often develops with age, but it may also occur in young children who have a genetic predisposition. Treatment for hemicrachia typically involves adjustments of the muscles involved in the neck and shoulders to restore alignment and