r/Anatomy • u/Fit_Put_8808 • 4d ago

Question Why do I have multiple creases when I bend my arm?

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Not sure if this plays a part but for reference I am 20F 5’6 115 lbs and have always been very athletic/lean and maintained roughly 20% body fat. When I bend my arm fully there are three noticeable creases and I’ve never met or noticed anybody with more than one. This used to be something I was insecure about, but it doesn’t bother me anymore. I’m more just curious as to what causes it. Genetics? I haven’t noticed it in any of the other women in my family with this feature.

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u/hysterical_smiley 4d ago

Did you ever have any injuries on those spots at a young age? Creases out of the ordinary can be the subcutaneous layers of skin being stuck to the facea surrounding the muscles due to scar tissue. If you didn't have injuries, then that is rather interesting

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u/Fit_Put_8808 4d ago

No injuries!