One year old baby’s temper is seen in three situations: 1, rickets caused by calcium deficiency, children will appear night sweats, irritability, night terrors, physical examination found that there are rib strings in the chest gangrene may also have chicken chest, head is square skull, delayed teething. 2, may appear iron deficiency anemia, iron deficiency anemia can show temperament change, temper may be bigger than usual, mental development, nutrition may be worse than the same age of the child, through the blood test can know whether there is anemia. 3, in normal daily life, parents cultivate life habits are not very good, sometimes over-satisfied, over-protection, so the temper will be more grumpy. Through routine blood test, we can know whether there is anemia or not. 3, in normal daily life, parents cultivate the habit of life is not very good, sometimes over satisfy, protect, accommodate, so the temper will be more irritable.