In this paper, we propose to make some categorizations for pragmatic analysis of mitigation in the medical-scientific text. We tried to apply the pattern of mitigation presented by Caffi (2001) to medical-scientific text, by analyzing some articles in the British Medical Journal. We propose a classification of two types of strategies, bushes (cespugli) and hedges (siepi), and some thoughts about the relationship between bushes and vagueness and between hedges and evidentiality.