Symptoms of pillow fall mainly manifested in the morning neck pain and discomfort, limited neck activity, etc., usually after a few days of rest can be self-cured. Pillow fall for acute onset, the affected muscles are cervical long muscle, trapezius muscle, cervical oblique angle muscle, sternocleidomastoid muscle, etc., the patient mainly manifests as early in the morning after waking up the neck pain, soreness and swelling, most commonly seen in unilateral, when serious, it can be radiated to the side of the upper arm or the back of the shoulder. In addition, the patient’s neck activities can be significantly limited, manifested in the left and right rotation activities, and in severe cases, there are also difficulties in tilting, and in the neck activities, pain, soreness and swelling can be aggravated, due to the discomfort of one side of the neck, the patient’s head is often biased toward the affected side, showing a “tilted neck” shape. Patients who suffer from pillow fall can usually recover on their own, but if the discomfort is more serious and affects daily life, it is recommended to consult a doctor in time.