First, parents' blessing to their children: China people like to pay attention to the symbolic meaning of auspicious words since ancient times. "Hundred" is an auspicious number in the eyes of China people.

Second, physiological characteristics: the baby is born to about 100 days, and the physical characteristics begin to change greatly. You can turn over and look up on your stomach. 100-day-old babies are more and more watery and have more and more rich facial expressions. This is the best time to take pictures of his children.

Third, health care precautions: new parents want to leave a good memory for their baby's growth process, but the baby is too young to take pictures of TA often.