The doctrine of res ipsa loquitur means

The doctrine of res ipsa loquitur   It means “the thing or fact speaks for itself”. In a case of professional negligence of a physician, the patient need not prove negligence. It is applied when the following conditions are fulfilled : That is the absence of negligence the injury would not have occurred ordinarily. That the doctor had exclusive control over the injury-producing instrument or treatment. That the patient was not guilty of contributory negligence.