Statement of result.A surface in a manifold is called "regular" to emphasize that it is immersed; the term "generalized surface" is used when regularity is only assumed almost everywhere.We treat generalized surfaces of constant mean curvature in an analytic Riemannian manifold Moi dimension 3. To this end consider the variational problem : Observe that the mapping X itself need not be a regular parameterization. Since the theorem can be applied in any neighborhood, it follows that a mapping which minimizes E even locally must be regular. The theorem is a generalization of the work of Osserman on the Plateau problem, that is, the caseConsequences. In the case that M is a space form, examples can be constructed of generalized surfaces of constant mean curvature with A MS 1970 subject classifications. Primary 49F22, 35B99, 49F25; Secondary 53B20, 49F10.