Chronic venous insufficiency

My brother-in-law is a Chinese restaurant chef, but he has severe varicose veins, so his legs swell in the evening.

From my perspective, the veins are quite prominently protruding.

When I looked closely, I even found it disgusting.

They said they wouldn't go when asked to go for surgery, but they said it's okay.

I guess you're scared because it's surgery. Is saphenous vein surgery dangerous? Some people seem to think it's minor, but I'm worried about my husband.