Obstetrics concerns the health of the mother and baby during and immediately after pregnancy. Gynecology is the field that involves the health of women and the reproductive system. Oncologist An oncologist is a physician who specializes in the diagnosis and treatment of cancer. Pathologist A pathologist is a physician trained to study tissues, usually under a microscope, to help diagnose certain conditions. Pathologists also help evaluate the body fluids by measuring chemicals and other vital elements in determining health and illness.
Pathologists often oversee microbiology and chemistry labs as well.
Pediatrician A pediatrician takes care of children. The pediatrician receives concentrated training in childhood illness and the physical and emotional development of children. They monitor a child's health from birth through adolescence. Physiatrist A physiatrist is a physician skilled in rehabilitative medicine. This physician would help take care of injuries, amputations, retraining and any other aspects of rehabilitation.