疼痛究竟是怎样产生的？经过多年研究，人们已经认识到大量细的皮肤感觉纤维（细的有髓Ａ纤维和无髓Ｃ纤维末梢）都是伤害性感受器，其中可同时感觉温度、机械和化学刺激的多觉型感受器是最常见的伤害性感受器。研究还表明，所有感觉神经元在发育的过程中都需要神经营养蛋... How exactly is the pain produced? After many years of research, it has been recognized that a large number of fine skin sensory fibers (fine myelinated A fibers and non-myelinated C fiber tips) are nociceptors in which the multi-sensory receptors capable of simultaneously sensing temperature, mechanical and chemical stimuli are The most common nociceptors. The study also showed that all sensory neurons need neurotrophic eggs during development ...