If the patient wakes up with numbness in the right hand and right foot, the following three main causes are considered: First, it may be caused by pressure on the right hand and right foot. If the patient is lying on the right side and does not turn over, the right side of the body is under pressure and blood circulation is not good, which will lead to numbness of the right limb. Second, if the patient is elderly, it may be caused by acute cerebrovascular disease, such as transient ischemic attack, cerebral infarction, resulting in numbness in the right hand and right foot, the lesion may be in the left thalamus, affecting the sensory nerve conduction. Thirdly, numbness in the right hand and right foot after waking up may also be caused by cervical and lumbar spine disease, which is related to the patient’s improper sleep posture.