The head can certainly “cramp”, cramp is actually in quotation marks, is the muscle tissue and muscle fiber pulling. It is mainly due to the following reasons: first, due to the muscle itself, causing local muscle twitching, such as excessive fatigue, prolonged head down causing excessive muscle tissue pulling, and local cold and other triggers, can cause local fiber contraction, forming a twitch. Second, other causes include vascular and neurological factors, especially vascular factors, when blood pressure is fluctuating or changing, vascular contraction dysfunction, cold, cold and other local stimulation to the blood vessels, can also cause functional disorders, sometimes there will be vascular throbbing pain, can also be considered as twitching. Neurological factors are more common, including prolonged low head stimulation of the greater occipital nerve, and after the nerve stimulation, the effector is the muscle tissue, and neuromuscular twitching can occur. Generally, this condition is occasional or infrequent, but when it occurs continuously and frequently, along with other corresponding symptoms, it is important to pay attention and go to the hospital for relevant examinations, except whether it is caused by cervical spondylosis, or vascular problems.