Common times for growth spurts are during the first few days at home and around 7-10 days, 2-3 weeks, 4-6 weeks, 3 months, 4 months, 6 months and 9 months (more or less).

• 快速成长期发生的时间段分别是：大约7-10天，2-3周，4-6周，3个月，4个月，6个月，9个月（有的宝宝可能更少一些，或者更多一些）。