Generally speaking, pure milk can be boiled, but it depends on the specific situation.
If it is sterilized and sold ordinary pure milk generally do not need to be boiled to drink, with warm water can be scalded to drink. If it is raw milk that has not been sterilized, it generally needs to be boiled and consumed.
If raw milk is not fully boiled, there may still be some bacteria and parasites left inside the milk, which may cause diarrhea, abdominal pain and other discomforts after drinking it. But if you drink it after it is fully cooked, you can not only kill the bacteria and parasites, but also will not lose too much nutritional value in the milk.
So pure milk can be boiled, drink milk in moderation every day, can supplement the body protein, calcium and other nutrients.