Abstract: Corticosteroids are efficacious to induce remission in patients with active ulcerative colitis， whilst accompanying by adverse events. Due to the lack of largescale randomized controlled clinical study， standard mode for application of corticosteroids in the treatment of ulcerative colitis is not very clear. To reduce corticosteroids use risk and maximize efficacy need  for right patients， appropriate agents should be used at the right time. According to the expert consensus published in recent years， a systematic review has been performed to examine this issue.

Key words: corticosteroids, colitis, ulcerative