A sample for microstructure diagnostics includes a sample body holder with accommodation structures to accommodate a sample body in a defined accommodation position; and at least one sample body produced separately from the sample body holder, the sample body having at least one solid handling portion and, adjoining the handling portion, a target portion thinner relative to the handling portion, the target portion being delimited at a narrow side by a sample body top side and, laterally, by side faces extending in a perpendicular or oblique manner in relation to the sample body top side, with the sample body being affixed to the accommodation structures in the accommodation position.