Individuals with cancer experience a host of symptoms, especially when the malignancy is advanced. Pain occurs from the cancer itself or related treatments. Undertreated pain contributes to patient suffering and lack of engagement in cancer-directed therapies. Adequate pain management includes thorough assessment; treatment by radiotherapists or anesthesia pain specialists; anti-inflammatory medications, oral or intravenous opioid analgesics, and topical agents; and attention to the emotional and functional effects of pain, which may involve social workers, psychologists, speech therapists, nutritionists, physiatrists and palliative medicine providers. This review discusses typical pain syndromes arising in cancer patients undergoing radiotherapy and provides concrete recommendations for pain assessment and pharmacologic treatment.

癌症患者会出现许多症状，尤其是当恶性肿瘤进展时。癌症本身或相关治疗会导致疼痛。治疗不足的疼痛会导致患者痛苦和缺乏参与癌症导向治疗。适当的疼痛管理包括全面评估；放射治疗师或麻醉疼痛专家的治疗；抗炎药、口服或静脉内阿片类镇痛药和外用药物；关注疼痛对情绪和功能的影响，这可能涉及社会工作者、心理学家、语言治疗师、营养师、理疗师和姑息治疗提供者。本综述讨论了接受放射治疗的癌症患者出现的典型疼痛综合征，并为疼痛评估和药物治疗提供了具体建议。