This is absolutely false
Absolutely false. Quite the contrary. The asian people has hemorroids as everybody else.
It is so easy to prove, just watch the many voyeur toilet hidden camera movies you can easily find in the internet and you will see how awful they can be and how frequent, considering these movies are taking at random times for random ladies.
Also, asian people that squat like that have these horrible deformed legs, because of staying so long in that ugly position every day. that is bad for the bones, and look really bad.