I am a 36 yr old male who has lived many years in 40+degC/ countries for around 1/3 my life(Saudia-Arabia being one).
It used to be after a long summer I''d get light yellowy/orange patches under my eyes around the check bones, and also on My Inner Ankles and sometimes as described here between my thumb and forefinger; and over the years on My Shins.
These re-semble freckles but are more orange like, although My Face under eyes are more like a yellow Tinge with freckles.
(I even had Hepatitis a/b/c test and liver function done to rule that out)
I have been informed this is a photo-sensitivity thing or Sun/UV Damage
(hormones also play a role, eostrogen mostly I believe, therefore as I mellow with age ang My Testoterone reduces, the symtoms get worse [I am 37 later this year, and this first began around 8yrs ago]
My Diagnosis was: MELASMA aka "Pregnancy Mask", and I also get orange/brown freckles between my thumb and first finger, although only a couple of times.
this a likely place for melasma thoug
{melasma appears in areas exposed to UV so EVEN if you used a sun screen you might regularly miss certain areas such as sides of fingers, ankles, top of feet etc]