The symptoms of headache on the right side may be related to migraine, intracranial lesions and cerebral hemorrhage, as follows: 1. Migraine: vascular headache, common clinical symptoms include headache on one side of the temporal region or both sides of the temporal region, often accompanied by nausea, vomiting, blurred vision and other symptoms, which are more common in young female patients and can be relieved by themselves. However, acute recurrence of migraine can be triggered by overexertion, staying up late, and excessive mental and psychological stress; 2. Intracranial lesions: such as intracranial occupying lesions, which often cause headache on one side, it is recommended to check the cranial MRI to rule out intracranial diseases first; 3. Cerebral hemorrhage: most patients have a history of hypertension, which can cause severe headache, vomiting, numbness of limbs, and activity disorders. If the symptoms of headache on one side even if you usually do not stay up late, it is recommended that further examination should be conducted to clarify the condition and treat it as soon as possible.