Some people don't heal easily and any scrape, bug bite, can leave a scar for a long time. Your heart seemed to be in the right place but don't jump to conclusions, especially on such a sensitive subject.

YDI

at least you showed concern for her well being, and even though it may seen awkward, I'm sure she appreciated that.

I'm giving you the benefit of the doubt here and assuming you weren't as condescending in person as you came off to me in this post. It sounds like your heart was in the right place, but in future maybe you should just offer to be an ear if they need it instead of jumping to conclusions. I'm both extremely clumsy (I mean, my boyfriend sometimes gets legitimately concerned that someone will assumer he's abusing me because I'm generally covered in bruises) and I have seld-harmed in the past. Regardless of whice one was the cause of the injury, I would never take kindly to someone just butting in and telling me "this is wrong" without even trying to talk to me about it first. I applaud the fact that you cared enough, and PLEASE don't lose that, but maybe work on how you go about it.

I tried to put this in a more delicate way, but it resulted in a very muddled statement that was hard to pull any meaning from. So here it is simply. Telling people to ignore recurring injuries that look deliberate because it "isn't there business" puts abuse victims and, yes, self harmers, at a far greater risk. Many abuse victims don't go to the authorities because of fear of many things- they won't be believed, no one cares, the injuries aren't obvious enough, etc- and being approached about to can in fact give them the courage to take action on the matter by assuring them that people DO care. Self harmers, on the other hand, are at substantially higher risk of making a successful suicide attempt than non-harmers. Stats range from 8x more likely to 20x more likely, but there is data to support the connection. Once again, while it can be embarrassing for some, it can be a literal life saver for others. So while OP didn't approach the matter in the best way, telling people to be inactive about this sort of thing is... Well, dangerous.

good on you for caring

need to work on those amateur therapist skills

I'm EXTREMELY clumsy and I have marks on my face, arms, legs, and sometimes boobs or stomach and people are always thinking I'm being abused. I tend to laugh it iff and tell them that I'm clumsy, followed by a recent clumsy moment

I know this comes from a good place but you sound kinda like an asshole.

while I appreciate your concern unless you're close to her saying something was not a good idea