Brownish/Reddish Bumps on underside of Cattleya's leaves?

[emmajs243]

Hey guys! I feel like I have posted so much today so I am sorry about that but I am so thankful for the help! I have been doing tons of research trying to find somebody answers to some of these concerns and finally have given up on a few so decided to post them here! I know I mentioned this in my "Yellow blotches on top of Cattleya's leaves. Too much sun?" Post but just to makesure anyone with the same question can find information, I wanted to post it with the correct descriptive title here.

My cattleya has these strange brownish/reddish bumps. She had these when she was shipped to me and she was shipped in a box with multiple US DEPT OF AG stickers signing off her quarantine release for no pests, viruses or diseases. This was a big comfort so I didn't think too much about these little bumps but just once again, worry makes me want to be sure! Any thoughts on what they might be? I tried wiping them away with an alcohol que-tip but nothing came off so I don't believe they are scale. I didn't do a super hard scrub but I have seen scale comes off pretty easily and would prefer to not damage her leaves for no reason!

[Dollythehun]

That looks like edema and some mechanical damage. I wouldn't worry. No doubt others may have more thoughts.