Chemical pathology is the practice of pathology devoted primarily to the use of biochemical and molecular techniques in the laboratory diagnosis and management of human disease.

Chemical pathologists advise clinicians on the selection and interpretation of clinical chemistry tests, and manage and direct a clinical chemistry laboratory. Chemical pathology involves the biochemical investigation of bodily fluids such as blood, urine and cerebrospinal fluid. By discovering how and where the body’s chemistry has changed, diseases can be diagnosed and monitored.