Is orgasm painful or joyful? How does the brain accurately distinguish between pain and orgasmic pleasure

Happy? Or pain? The expression of facial expressions shared by orgasm and pain. This is because the parts of the brain and spinal cord that control orgasm and pain overlap, and this close connection inevitably leads to some interesting consequences. For example, from a positive perspective, when women reach orgasm through vaginal self stimulation, their sensitivity to pain will be reduced by half compared to normal (during rest). In some cases, when medication fails to relieve pain, it may be necessary to surgically cut off certain spinal nerve pathways to achieve pain relief, while also blocking the possibility of orgasm. Sometimes, the effectiveness of surgery is temporary, and after 6 months, the pain relapses, but the ability to orgasm also recovers. At least two regions of the brain (insula cortex and anterior cingulate cortex) are consistently active during orgasm and pain. This raises an interesting but unanswered question: How does the brain accurately distinguish between pain and orgasmic pleasure? What is the difference between neurons producing pain and pleasure caused by orgasm?

Do these two regions of the brain have any common properties for pain and orgasm? This allows for the differentiation of emotional expressions of the same intensity (displayed by facial expression muscles) into different sensations of pain and orgasm. It is highly likely that the neural pathways that transmit pain and pleasure are closely parallel in the spinal cord and brainstem, leading to the same response as facial expression muscles before distinguishing these two sensations in the brain and transmitting them separately to the pain sensitive cortex and pleasure sensitive cortex. In this way, before the brain finally distinguishes them, sensory activities stimulated from both the genitalia and other regions will cause the same facial expression changes.