When nerves on your leg protrude, is it dangerous?!

When nerves on your leg protrude, is it dangerous?

my dad is rather active for a man above 50 years of age, and lately i have realised that nerves around his calf are pritruding. its really abvious and seem as though its above his flesh but just hiding under his skin. i would really like to know is this dangerous? he says he feels no pain or discomfort due to it, but still im a little worried.
please and thank you for all those who reply.

those are distended veins or varicose veins, it can be corrected by vein stripping for women for aesthetic purposes, but for men, if there's no discomfort they just leave it alone. if it start to bother him, he should see a vascular specialist, sometimes, anti embolic stockings are prescribed, and elevating the legs at night helps.