Some vague pain in the right back of the head may be caused by cold, high blood pressure, vascular headache or intracranial lesions, etc. It is recommended to go to the hospital for examination and diagnosis in time to avoid delaying the condition. 1. Cold: Simple pain in the right back of the head is usually caused by cold wind, resulting in cerebral vasoconstriction and spasm. Patients need to pay attention to the cold and warmth in daily life, can be improved through the method of head massage to alleviate the discomfort, if the headache persists for a long time should go to the hospital in time for examination. 2. High blood pressure: When the blood pressure rises, the pressure inside the cerebral blood vessels increases, causing the blood vessels to fill up the local meninges and cause stimulation, which may cause the right back of the brain hidden pain. 3. Vascular headache: vascular headache is usually due to the head of vascular diastolic dysfunction and cerebral cortex dysfunction, or some body fluids and substances caused by temporary changes in the discomfort of the symptoms. The weather is too cold and too hot, excessive fatigue, smoking and alcoholism, patients with emotional ups and downs and other factors may trigger vascular headache, resulting in the right back of the brain has a vague pain. 4. Intracranial lesions: Certain intracranial lesions such as hydrocephalus, encephalitis, brain tumor, cerebral infarction or cerebral hemorrhage can cause increased intracranial pressure, which can lead to vague pain in the right back of the head. There are many factors that can cause vague pain in the right back of the brain. If the vague pain persists and tends to worsen gradually, it is recommended to go to the hospital for examination and diagnosis in a timely manner, and carry out targeted treatment according to the doctor’s guidance.