Adult intussusception is rare but can prove to be challenging surgical situation. The etiology of adult intussusception is different from that of children, and because of the possibility of malignancy, surgical treatment is highly recommended. We present a case report of malignant lymphoma that caused ileocolic and colocolic intussusception in an adult. At first event of intussusception, the patient refused to undergo additional treatments due to improved symptoms. Three months later, the patient was transferred to our hospital due to recurrent and unresolved abdominal pain. The patient underwent a right hemicolectomy and was diagnosed with malignant B-cell lymphoma that involved the ileocecal valve. Physicians should consider malignancy as a potential cause of intussusception in adult, and should quickly provide adequate surgical intervention.