BFF finding out

[Ravenous1]

My BFF is coming over and I'm afraid that she will see my scars and get mad at me for cutting. I don't want her to know she already knows something is wrong and I don't want a repeat of what happened with my mom.

[Princess Ariel]

If she really is your friend. She'll accept it, and try to help you. When I told mine, she just cried, and then went in for the hug.
You could also just wear a long sleeve shirt, or a track jacket. Something that covers up the scars.
Hide your blades, Knifes, everything you use. Put it in a pillow case, or at the bottom of your closet.

[Ravenous1]

My BFF also cuts, but when I found out I just told her not to do it I didn't understand it at the time. At that time i wasnt cutting i didnt even cut. Now if she does get mad at me she's just being a hypocrite. I just don't want her to find out at all

[Desuetude]

Ok so her understanding what you're going through should make it easier.
I know you say you don't want to tell her but maybe that would be the best thing, you could both get some support from each other, it's much easier than going through it alone. If she gets mad then honestly you can just use it against her because thats no way to treat a friend and yes she would be a pretty big hypocrite.
But yeah if you don't want her seeing wear something that covers your arms, hide anything you use and act normal, she's most likely to suspect something if you are nervous.
But in all honesty most people would kill to be in your position, someone that you trust that you can go to as well as understanding what you're going through. But it's up to you, some foundation or concealer might do the trick as well.

[Ravenous1]

Your right. my BFF doesn't know the reason I cut, which is from the voices, my mom doesnt even know why, my BFF gets worried over everything and I don't want to add more to it than I already have.
And I just found out that she can't make it over I guess that I don't have to worry about her finding out now :(