A well-child visit is a preventive checkup for children and teens, scheduled at regular intervals from birth through age 21. Unlike a sick visit where you bring your child in for a specific problem, these appointments focus on tracking growth, catching developmental issues early, administering vaccines, and screening for conditions before symptoms appear. They’re one of the most routine parts of pediatric care, and most insurance plans cover them at no cost to you.
What Happens at a Well-Child Visit
Every well-child visit follows a general pattern, though the specifics change as your child gets older. The pediatric provider will ask about your child’s emotional and physical health, examine them, track their growth on standardized charts, give any recommended vaccines, and share guidance on nutrition, safety, and behavior for that age. Weight is measured at every visit. For children under 2, length is measured while they’re lying down; older kids stand for a height measurement.
At certain ages, the visit also includes targeted screenings based on what’s most relevant at that stage of development. In early childhood, that might mean checking blood lead levels. In middle childhood, it could include a cholesterol screening. For adolescents, the provider may assess risk for depression, substance use, or sexually transmitted infections. The goal is to match the checkup to the health risks and milestones that matter most at each age.
The Recommended Visit Schedule
Visits are most frequent during the first two years of life, when growth and development change rapidly. Newborns should be evaluated within 3 to 5 days of birth, and those discharged from the hospital in under 48 hours need a follow-up within 48 hours of going home. After that initial period, visits are typically scheduled at 1, 2, 4, 6, 9, 12, 15, 18, 24, and 30 months.
Starting at age 3, the schedule shifts to once a year through age 21. These annual visits become especially important during adolescence, when mental health screenings, reproductive health conversations, and new vaccines enter the picture. The full schedule, known as the Periodicity Schedule, is maintained by the American Academy of Pediatrics and updated regularly.
Developmental and Behavioral Screening
Your child’s provider monitors development informally at every visit, watching for how they move, communicate, and interact. But at three specific ages, a formal developmental screening using a standardized questionnaire is recommended: 9 months, 18 months, and 30 months. These tools help identify delays in language, motor skills, or social development that might not be obvious during a quick exam.
Autism screening happens at 18 and 24 months, regardless of whether there are any concerns. This isn’t because those ages are when autism “appears.” It’s because validated screening tools work well at those ages and early intervention makes a significant difference in outcomes. If concerns come up at any other visit, screening can happen then too.
The 4- to 5-year visit gets special attention for developmental surveillance because it falls right before kindergarten entry, when demands on attention, social skills, and communication increase sharply.
Screenings for Teens
Well-child visits for adolescents look quite different from toddler checkups. Starting at age 12, depression screening becomes a routine part of the visit. The most commonly used tool is a brief questionnaire called the PHQ-9, which asks about mood, sleep, energy, and interest in activities over the past two weeks. There’s no established rule for how often to repeat the screening, but it’s typically done annually.
Providers also assess for alcohol, tobacco, and drug use during adolescent visits. For teens at higher risk, screenings for hepatitis B, HIV, and other sexually transmitted infections may be part of the appointment. These conversations can feel awkward, but they’re a standard part of preventive care for this age group, and many providers offer teens some private time without a parent in the room.
Vision, Hearing, and Lab Tests
Vision screening is recommended at least once between ages 3 and 5, primarily to catch amblyopia (sometimes called “lazy eye”) while it’s still highly treatable. For kids under 3, providers may use simpler methods like checking whether a baby can track an object or examining the red reflex in the eyes. Older children get more familiar tests using letter or symbol charts, and instrument-based screening with devices that can detect focusing problems even in very young children.
Hearing screening begins at birth with a newborn hearing test, and providers continue to monitor hearing at regular intervals throughout childhood. Blood tests are targeted rather than routine. Children enrolled in Medicaid are required to have blood lead testing at 12 and 24 months. For other children, lead screening depends on risk factors like the age of their housing. A cholesterol check is recommended once between ages 9 and 11, and again between 17 and 21. A blood test for anemia is also part of the screening schedule, typically in infancy or early childhood.
Vaccines Given at Well-Child Visits
Immunizations are one of the most concrete things that happen at these appointments. The vaccine schedule is busiest in the first 15 months of life, when children receive protection against hepatitis B, rotavirus, diphtheria, tetanus, pertussis (whooping cough), a type of bacterial meningitis, pneumococcal disease, polio, measles, mumps, rubella, chickenpox, hepatitis A, and flu.
Booster doses continue through early childhood, and the schedule picks up again in the preteen years with a tetanus-diphtheria-pertussis booster, the HPV vaccine, and meningococcal vaccines. Annual flu vaccination is recommended from 6 months of age onward. Your provider will let you know which vaccines are due at each visit based on what your child has already received.
What Insurance Covers
Under the Affordable Care Act, most health plans, including Marketplace and Medicaid coverage, must cover well-child visits and their associated preventive services at no cost to you. That means no copay, no coinsurance, and no need to meet your deductible first, as long as you see an in-network provider. This coverage extends to immunizations, developmental screenings, autism screenings, vision and hearing checks, blood pressure and BMI measurements, depression screening for adolescents, lead testing, cholesterol screening, and newborn blood tests, among others.
If a concern comes up during a well-child visit that requires additional evaluation or treatment, that portion may be billed separately and could involve a copay. But the preventive components themselves are covered. It’s one of the few areas of healthcare where federal law is quite specific about what must be free.
How to Get the Most From Each Visit
These appointments cover a lot of ground in a short window, so it helps to come prepared. Write down any questions you have about your child’s sleep, eating, behavior, or development beforehand. If your child is a toddler or preschooler, note any words they’re saying, how they play, and whether they follow simple instructions, since those details feed directly into developmental surveillance.
For teens, encourage them to think about what they want to discuss with their provider. Many adolescents have questions about mood, body changes, or relationships that they won’t bring up unless given the space. Some parents find it helpful to step out for part of the visit so their teen can talk openly. The visit belongs to your child as much as it belongs to you, and that shift becomes increasingly important as they get older.