Patient lies on her left side, two legs fold up, colonoscopy polyectomy and anapath. Results: After 30 minute, pneumosubcutaneous appear on her check - thorax - abdomen, life signal normal, normal breathing, not pain abdomen when palpitation, the patient had been conserved treatment in 18 days, x-ray and abdomen check many times, and discharged from hospital completely healing. Conclusion: Pneumosubcutaneous maybe have after colonoscopy polyectomy on diverticular disease's patient.