Why only wear White underwear?

Question

I have been browsing some health questions (ie: kidney stone prevention)

and have noticed that there is often someone saying to wear only white underwear. What could be the health benefits of wearing only white underwear?

Answer 1

You can see the stains you make from the stone.

Answer 2

Matt the pants is back

Boom

Answer 3

White clothes are not color damaged by using chlorine as a disinfectant.

Answer 4

I don't know but I like s**y wear... anything other than white... black is even s**y to me... but I like purples and blues

Answer 5

Huh? I searched for "kidney stone white underwear" and this question is the only one that came up.

Answer 6

I have never heard of such a thing! Why would the color of your underwear help your health. Perhaps it is easiest to see any abnormal changes in color of discharge/bleeding if they are white undies. Other than that... that is odd.