Excision Biopsy - Breast

Hi lovely people. 
My other half is going in on Monday and I just wondered what we needed to expect, and any tips from others who have unfortunately been in this position. 
 

We are both nervous, though I'm trying to naturally stay strong. If I can pass on anything that might be useful it would help maybe put us both a little at ease. 
 

I think the wait for results (again) is going to be horrific again following :-(. 
 

thank you!