A fall on the back of the head may lead to a transient increase in blood pressure. A fall on the back of the head may cause an increase in blood pressure in patients with high blood pressure. Normally, a fall on the back of the head does not affect blood pressure fluctuations, but it may cause irritation to the soft tissues and nerves in the back of the head, causing pain and redness, and in severe cases, it may also cause damage to the brain tissue, cerebral hemorrhage, coma, or even shock, which may cause stress and a transient increase in blood pressure. When some patients themselves suffer from high blood pressure, a fall on the back of the head may aggravate the stimulation of the body and make the blood pressure fluctuate. It may also lead to craniocerebral injury and discomfort such as dizziness and headache. A fall on the back of the head is recommended to consult a doctor in a timely manner, improve the relevant examination, and actively treat under the guidance of the doctor, so as to avoid triggering adverse consequences.