The frequency of check-ups varies based on the child's age. Generally, the schedule is as follows:
- Newborn: Within the first week after birth. - Infants: At 1, 2, 4, 6, 9, and 12 months. - Toddlers: At 15, 18, 24, and 30 months. - Preschool and School Age: Annually from ages 3 to 21.