The problem of finding a conformal metric on the unit ball B n , n ≥ 3, with prescribed mean curvature H(x) on ∂B n was widely studied under the assumption that H is flat near its critical point of order β ≤ n -1. In this paper, we consider the case of β > n -1. We study the lack of compactness of the problem and extend some known existence results.MSC: 58E05; 35J65; 53C21; 35B40