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疼痛是一种症状。当机体受到外伤或患有某些急慢性疾病时都会产生疼痛的感觉.对机体来说,疼痛是一种保护性反应,它可使人躲避开种种不良的刺激。医生还可根据不同部位疼痛的性质和特点,来判断是何疾病.但疾病所引起的疼痛却给病人带来极大的痛苦。如患有关节炎、慢性腰腿痛、偏头痛等病的人,长期持久的疼痛使他们度日如年,影响学习、工作,失去对生活的乐趣;严重外伤所引起的疼痛常使人发生休克;晚期癌症病人的剧痛,更使人倍受折磨,难以忍受。那么,疼痛是怎样产生的呢?科学家们在研究疼痛的机理时发现,在皮肤里有各种感受器。真皮内分布着呈树枝状的神经突起末端,每平方厘米约有100到180根;
Pain is a symptom. When the body is traumatized or suffering from certain acute and chronic diseases will have the feeling of pain.For the body, the pain is a protective reaction, it can make people avoid all kinds of bad stimuli. The doctor can also determine what the disease is based on the nature and characteristics of pain in different parts, but the pain caused by the disease gives the patient great pain. Such as arthritis, chronic low back pain, migraine and other diseases, long-lasting pain to make them spend their days, affecting learning, work, lose the joy of life; severe pain caused by trauma often make shock; late The pain of cancer patients, even more torture, unbearable. So, how pain is produced? Scientists in the study of pain mechanism found in the skin have a variety of receptors. There are dendritic neurite tips distributed in the dermis with about 100 to 180 per square centimeter;