Anorexia in babies usually occurs between six months and one year of age, and in some children it appears earlier, perhaps around four months. Babies under one year of age may suddenly refuse to take milk for no reason. This is physiological anorexia, which is usually only temporary and will return later. At this time, you can give your child a variety of complementary foods to enhance the child’s appetite. If your child’s weight and height growth are within the normal range and there are no other abnormalities, it means that your child is getting enough nutrients from the food he eats every day, so you don’t need to worry too much and don’t force your child to eat a certain amount of milk every day.