The causes of right-sided brain pain include cerebral hemorrhage, subarachnoid hemorrhage, intracranial tumors and other diseases, as follows: First, cerebral hemorrhage: if it is a cerebral hemorrhage in the right cerebral hemisphere, it can cause pain in the right side of the brain. Second, subarachnoid hemorrhage: it can also cause pain in the right side of the brain. Third, intracranial tumors: especially some benign tumors, to the middle and late stages can appear the phenomenon of right brain pain. Fourth, other diseases: headaches caused by other aspects, such as migraine, tension headache, etc. There is another kind of pain called neuropathic pain, and cervicogenic headache. Therefore, there are various reasons for the emergence of right brain pain, and it is important to visit the neurology department of the hospital to decide the next treatment plan according to the type of diagnosis.