Clinical pathology is the laboratory study of cells and tissues. A pathologist identifies the causes and processes of diseases through microscopic study. Some human samples studied under a microscope include tissue specimens, cells, body fluids and secretions. Information gathered from the laboratory study of these samples from the body allow the pathologist to diagnose, confirm and monitor diseases.

Doctor density varies by specialty and location. The United States has 1,583 practicing clinical pathologists. Broken out by state, clinical pathology doctor density in Alabama is 17, in Alaska is 3, in Arizona is 10, in Arkansas is 13, in California is 148, in Colorado is 19, in Connecticut is 33, in Delaware is 5, in District of Columbia is 11, in Florida is 60, in Georgia is 39, in Hawaii is 4, in Idaho is 6, in Illinois is 95, in Indiana is 69, in Iowa is 15, in Kansas is 20, in Kentucky is 23, in Louisiana is 23, in Maine is 10, in Maryland is 37, in Massachusetts is 75, in Michigan is 51, in Minnesota is 90, in Mississippi is 21, in Missouri is 52, in Nebraska is 18, in Nevada is 14, in New Hampshire is 3, in New Jersey is 35, in New Mexico is 33, in New York is 112, in North Carolina is 54, in North Dakota is 8, in Ohio is 63, in Oklahoma is 8, in Oregon is 21, in Pennsylvania is 138, in Rhode Island is 6, in South Carolina is 14, in South Dakota is 10, in Tennessee is 30, in Texas is 97, in Utah is 15, in Vermont is 7, in Virginia is 25, in Washington is 54, in West Virginia is 16, in Wisconsin is 50, and in Wyoming is 3.