The next question is whether or not the medical professional's negligence actually did the patient harm. After all, patients don't ordinarily seek medical attention in the first place unless there's already something wrong.
In some cases, the harm caused by the medical professional's negligence may be obvious, even to the most untrained eyes, such as operating on the wrong part of a person's body, God forbid. But in many other instances, the link between the medical professional's conduct and the eventual condition of the patient is complicated by questions of causation, that is, by whether or not some or all of the patient's ailments may have arisen from a pre-existing injury or disease, rather than from the medical negligence.
In such complicated cases, proving the link between the negligence and the harm will also require a qualified expert to say so, and this area of expertise, in some cases, may be so special that a second expert is required, that is, someone with qualifications that are different from those possessed by the medical negligence expert, and it doesn't end there....
