The right side of the head pain has the following causes: 1, may be caused by high blood pressure, high blood pressure patients should pay attention to, usually often measure their blood pressure, also try to avoid eating high-fat food, high blood pressure patients pay attention to maintain a stable mood, if the mood is very easy to let the blood pressure rise; 2, may be related to brain diseases, such as cerebral hemorrhage, cerebral infarction, etc., for safety reasons it is recommended to do brain CT or MRI to rule out the cause; 3, may be caused by lack of sleep, usually try to avoid staying up late, must pay attention to more rest; 4, may be caused by their own anemia, you can go to the hospital to do a routine blood test to see whether their hemoglobin abnormal, usually try to avoid eating spicy, stimulating food.