Human milk could have potential to be more ethical than any other milk.

Hyperlactation happens in human beings, as well as another condition where lactation is locked as a permanent bodily function.

It can be extremely painful and regularly extracting the fluid is the best way to relieve the pressure. Medication can help but events where the lactation process re-emerged have happened.

Lactation can also be triggered without need for impregnation in humans.