A medical student decided to study sexual dysfunction as his specialty. As part of the training, the chief doctor decided to bring the student around to all the patients in his wing so the student could see firsthand some of the diseases.
The doctor opened the first patients door and the student was stunned to see the patient masturbating The doctor explained that this patient had a rare sexual dysfunction that if he didnt have an orgasm every five minutes, he would go into traumatic shock.
The chief doctor proceeded to show the medical student different patients and explain each problem so the student would understand well.
Finally they came upon another room and when the doctor opened the door, the student was shocked to see a nurse performing oral sex on the patient. Confused, the student asked, What disease does this man have? Oh, said the doctor, He has the same problem as the first patient, he just has a better health plan.