Varicose vein symptoms

Can varicose veins in one of the parents be inherited by their children?

So far, I don't have any prominent or bulging veins in my legs.

When I return after going out, my leg swelling is severe (about a 5mm difference in shoe size).

If you walk a lot, small and faint bruises appear on your legs.

I haven't felt any major discomfort, so I haven't gone to the hospital for treatment, but as I get older...

I'm worried whether I should go to the hospital.

What kind of treatment do you receive at the hospital if you've had treatment for varicose veins?