If the patient has a simple right-sided headache, consider the following diseases: 1. migraine, migraine is characterized by moderate to severe pain on one or both sides of the head, the pain can affect the patient’s daily work and life, it is characterized by the aura symptoms of blurred vision and visual distortion that can precede the onset of pain, accompanied by photophobia and phonophobia during the onset of pain, while the patient does not like to be in a brighter environment and needs to rest in a Tension headache is the most common type of headache in daily life, characterized by swelling or dull pain in the head, accompanied by a feeling of compression or tightness, usually caused by overexertion, poor sleep or poor mood. 3. If the migraine is accompanied by nausea, vomiting or even jet vomiting and blurred consciousness, it is considered to be a cerebrovascular disease, such as cerebral hemorrhage or subarachnoid hemorrhage, and the patient needs to promptly consult a neurologist for a cranial CT examination to clarify the diagnosis and provide timely treatment.