Introduction: Intussusception is not commonly seen in adults. There are various causes of Intussusception in adults. Commonly these are due to malignant tumours. Some benign tumours are also encountered. Aim of the study: To study the cause of intestinal obstruction in this case. Materials and Methods: This study was conducted in a tertiary care hospital in Kolkata.Result: This is a case study of an elderly man with intestinal obstruction who was admitted to the hospital with pain abdomen and mass in the abdomen. USG revealed a mass containing fat. Postoperative histopathological examination confirmed submucosal lipoma. Conclusion: Lipoma is one of the causes of Intestinal obstruction. It can be confirmed by histopathological examination after surgery.