What are false positives?
A number of non cancerous changes may look similar to either a small cancer or pre cancer changes. If these are seen on a mammogram, a woman may be sent for a biopsy. Not only can this cause anxiety, it can also be quite unpleasant and expensive.
Newer mammographic techniques are generally more accurate: they are better at picking up cancers and are better at distinguishing between cancerous and non cancerous changes.
Unfortunately, unless we discover new, infallible methods of screening there will always be a chance that a positive test result is actually a false positive and that the patient may have been worried when they need not have been.
Have you been for a screening mammogram and needed a biopsy? What was your experience?