How would you reword this, in terms where others could understand?

A biopsy is recommended when a significant abnormality is found, either on physical examination and/or by an imaging test. Examples of abnormality can include a breast lump felt during physical self examination or tissue changes noticed from a mammogram test. **Before a biopsy is performed, it is important to make sure that the threat of cancer cannot be disproved or ruled out by a simpler, less invasive examination.** A lump may be obviously harmless when examined by ultrasound. If this is not decisive, the presence of cancer or a variety of benign breast conditions can be determined using a biopsy.

In other words, how would you explain:
"Before a biopsy is performed, it is important to make sure that the threat of cancer cannot be disproved or ruled out by a simpler, less invasive examination."

A biopsy is necessary for an informed diagnosis.

sounds pretty clear to me.

Basically says, you should try using simpler methods to check for cancer before having a biopsy.

i understand what you're saying. i think what you have typed is thorough and understandable. anything less would leave out crucial parts of the explaination, i think.

good job as is!

THE LAST PARAGRAPH COULD NOT BE SIMPLER TO STATE.

How simplified do you want it?

"let's make sure that we look at everything to see if this problem is not caused by an allergy or something. If we cannot find a reason for it, then we will do a biopsy. A biopsy is when we take a very small piece of the area and look at it under a microscope. We will give you some medicine to take so that you it won't hurt you. "

However, the way it is currently phrased is simple enough to be understood by pretty much anyone, IMHO.

Yes you rephrased it correctly.

A biopsy is only a recommended intervention after all other less invasive methods have been exhausted, and the threat of cancer is not able to be ruled out. At that point a biopsy can determine wheither the condition is benign or cancerous.

Before a biopsy is performed, a simple, non-invasive, self-examination should be conducted as the initial means of assessment.

biopsy will show is it cancer, as i can see this sentence is inteletualization,does not mean anything special