A diagnosis (ancient Greek: δια-γνωστικος) is when a doctor finds out what is making someone sick.[1] Sometimes doctors can diagnose a sickness by asking the person questions and looking at the person's body. Sometimes doctors do tests. Tests can mean taking a small bit of blood, urine or tissue which is sent to a hospital laboratory where it is tested. X-rays are another form of test.Tests are ways to see how the body is working. When a diagnosis has been made, the doctor may recommend treatment.[source?]