Embodiments of the disclosure relate to a screening method for the diagnosis of haematological neoplasia. In the method, a first test step is performed to check whether a potential haematological neoplasia exists. At least a first haematogram is created with a blood sample in the first test step. Based on a first set of filter rules, it is checked whether the first haematogram differs from a desired state specified according to the first set of filter rules, and a second test step is performed to check for potential haematological neoplasia if the first test step reveals that there is potential haematological neoplasia. In addition, the disclosure relates to a system, a computer program product, and a computer-readable storage medium.