Objective  Sigmoid carcinoma complicated with malignant obstruction is a potential and intractable clinical problem encountered during the treatment of colon cancer. This study aimed to explore clinical treatment strategies and experiences involving the management of malignant obstruction as a result of sigmoid colon carcinoma.

  Methods  We reviewed a case of sigmoid colon carcinoma with malignant obstruction in Peking University Cancer Hospital and reported the treatment strategies implemented.

  Results  Patients with advanced metastatic sigmoid colon carcinoma and resultant obstruction were mainly administered by supportive treatment, which included intestinal obstruction decompression using a tube or stent. Relief of acute obstruction using appropriate supportive therapies provides safer opportunities for both surgery and comprehensive antitumor therapy. Nutritional support is essential throughout the course of obstruction treatment and is a key component of successful antitumor therapy.

  Conclusions  Malignant obstructions caused by primary gastrointestinal tumors may be alleviated via intestinal obstruction decompression using tubes or stents. This allows for improved bowel preparation prior to surgical resection of the primary obstructive tumor. Intestinal stenting is recommended for the decompression of obstructive malignant colon cancers, although contraindications and medical comorbidities should be considered to ensure that the appropriate treatment modality is selected.