癌症是当今严重威胁人类健康和生命的疾病之一,是造成死亡的最重要原因之一。据报道,世界上每年新发现的癌症患者约1000万,死于癌症者在600万以上,其中(30％—50％)伴有不同程度的疼痛,尤其是许多因为各种原因在确诊时已属于晚期的病人,正忍受着巨大疼痛的折磨,但是由于传统观念的影响,许多医务人员认为应在患者临终前数周开始镇痛药的治 Cancer is one of the most serious diseases that threaten human health and life today. It is one of the most important causes of death. According to reports, about 10 million new cancer patients are found each year in the world, and more than 6 million people are dying from cancer. Among them, (30%-50%) are accompanied by different degrees of pain, especially when many have been diagnosed for various reasons. Patients belonging to the advanced stage are suffering from enormous pain, but due to the influence of traditional concepts, many medical personnel believe that analgesics should be started several weeks before the patient’s death.