The Clinical Laboratory a major medical specialties Sciences where involved medical profession and diagnosis of diseases with laboratory analysis of micro-samples satisfactory to detect abnormal body changes by different laboratories coefficient, and falls under this flag number of sub-sciences, which include Clinical Pathology, Biochemistry , hematology, blood immune cells histopathology, pathophysiology, medical genetics, as well as biology and microbiology, which also include immunology, virology, mycology and the epidemiology of infectious diseases.