The role of the doctor is not only restricted to prevention and treatment, he is considered the first destination of families’ health problems. His medical role begins with the diagnosis and evaluation of all types of medical cases and answering the patients’ questions regarding their health conditions. Sometimes, this requires laboratory tests to accurately diagnose the condition, hence, the exact etiology of the health problems of patients and their families is examined, then the best ways to treat them, and supervise all medical cases to check the condition of patients.