Hi I just noticed this recently. I don't know how long it has been here.
Basically, my ankle and the area near it (outer part) has some brown patches of skin. It does not itch or hurt. I cannot tell if the patches are rather dry or thick skinned or not.
I am a 22-year old Asian. For the past year I've been walking for at least 40 mins to work. I rarely wear socks and I usually just wear shoes right away.
I don't know if this is just friction or trauma brought about my shoes.
Attached are photos of my two feet. I don't know if the brown patches are more or less symmetrical on the two feet? The one one the right feet appears a bit darker than the left one though.
I am planning to visit a doctor's clinic next week, but as a hypochondriac, I could use some advise that might help me get through the wait. :(