The present invention is a sample processing apparatus. The apparatus includes: a sample processing unit configured to process a sample; a display; a memory for storing an electronic manual for the sample processing apparatus; and a controller that is capable of showing a relevant part of the electronic manual on the display when a trouble has occurred in the sample processing unit, the relevant part of the electronic manual describing an operation procedure to deal with the trouble. The sample processing unit comprises a sample preparation unit configured to prepare a measurement sample from a blood and a reagent; and a detector configured to detect characteristic information from a blood cell contained in the measurement sample prepared by the sample preparation unit, wherein the controller obtains a number of blood cells in the blood based on a detection data obtained by the detector. The invention also provides an information processing apparatus in communication connection with the sample processing apparatus processing the sample, and a method for removing abnormality generated in the sample processing apparatus.