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恶性肠梗阻(MBO)是指原发性或转移性恶性肿瘤造成的肠道梗阻，既包括原发肿瘤所致的肠梗阻，也包括肿瘤复发转移导致的肠梗阻。恶性肠梗阻是晚期恶性肿瘤尤其是结直肠癌和卵巢癌患者的常见并发症。症状包括腹痛、腹胀、恶心和呕吐以及无法进食。治疗选择包括外科及非外科干预措施。本文综合评述了恶性肠梗阻常见的原因、诊断要点和治疗进展。因原发病不同、梗阻部位不同等不确定因素，尚没有一个统一治疗肠梗阻的最佳方案。通常根据患者病情制定个性化治疗方案。另外，也需要进行更多的研究来协助制定更加完善和具体的恶性肠梗阻治疗策略。“,”Malignant bowel obstruction (MBO) refers to intestinal obstruction caused by primary or metastatic malignant tumors, including both intestinal obstruction caused by primary tumors and intestinal obstruction caused by tumor recurrence and metastasis. Malignant intestinal obstruction is a common complication of advanced malignant tumors, especially colorectal cancer and ovarian cancer. Symptoms include abdominal pain, bloating, nausea and vomiting, and inability to eat. Treatment options include surgical and non-surgical interventions. This article comprehensively reviews the common causes, diagnostic points and treatment progress of malignant bowel obstruction. Due to uncertain factors such as different primary tumors and different obstruction sites, there is still no unified best plan for the therapy of intestinal obstruction. A personalized treatment plan is usually made according to the patient's condition. In addition, more research is needed to help formulate more complete and specific therapeutic strategies for malignant bowel obstruction.