There are no routine vaccines specifically scheduled for the 9-month visit. The CDC immunization schedule places most infant vaccinations at 2, 4, and 6 months, with the next round at 12 to 15 months. That said, your baby may still receive shots at this appointment depending on whether they need catch-up doses, a seasonal flu vaccine, or a COVID-19 vaccine.
Why the 9-Month Visit Often Has No Shots
The standard U.S. childhood immunization schedule concentrates vaccines at specific ages: birth, 2 months, 4 months, 6 months, and then 12 to 15 months. Nine months falls in a gap between those intervals. If your baby received all their shots on time at earlier visits, the 9-month well-child checkup is primarily a developmental and physical exam rather than a vaccination visit.
This surprises many parents who expect shots at every appointment. The 9-month visit still matters. Your pediatrician will check growth, assess milestones, and may order a blood test to screen for lead exposure or anemia. But the needles are often skipped entirely.
Catch-Up Vaccines Your Baby Might Need
If your baby missed or fell behind on earlier vaccinations, the 9-month visit is a common time to catch up. A vaccine series never needs to be restarted regardless of how much time has passed, so your pediatrician will simply pick up where you left off. The vaccines most likely to be given as catch-up doses at 9 months include:
- Hepatitis B (third dose): This final dose can be given anytime after 24 weeks of age, as long as it’s at least 8 weeks after the second dose and 16 weeks after the first.
- DTaP (diphtheria, tetanus, pertussis): If the third dose at 6 months was missed, it can be given at 9 months as long as at least 4 weeks have passed since the second dose.
- Hib (Haemophilus influenzae type b): The third dose follows a similar timeline, with a minimum 4-week gap after the second dose.
- PCV (pneumococcal conjugate vaccine): Also commonly caught up at 9 months, requiring at least 4 weeks after the previous dose.
- Polio (IPV): The third dose is recommended between 6 and 18 months, so a delayed third dose at 9 months is perfectly on schedule.
Your pediatrician’s office will have your baby’s immunization record and can tell you exactly which doses, if any, are due. Multiple catch-up vaccines can safely be given at the same visit.
Flu and COVID-19 Vaccines
Seasonal vaccines are the most common reason a 9-month-old does get a shot at this visit, even if they’re fully up to date on routine immunizations.
The flu vaccine is recommended annually for everyone 6 months and older. If your baby is getting the flu shot for the first time (which most 9-month-olds are), they need two doses spaced at least 4 weeks apart. That means the 9-month visit during flu season is often when the first or second flu dose is given.
COVID-19 vaccination is also available starting at 6 months. The number of doses depends on the manufacturer: two doses for the Moderna series or three doses for the Pfizer series. All doses in a child’s series must come from the same manufacturer. If your baby started the COVID-19 series earlier, they may be due for a follow-up dose around 9 months.
Common Side Effects to Expect
If your 9-month-old does receive any vaccines at this visit, the most common reactions are mild and short-lived. Soreness, redness, or swelling at the injection site is the most frequent. Low-grade fever, fussiness, decreased appetite, and extra sleepiness are also normal and typically resolve within one to two days.
For fever or discomfort, you can give infant acetaminophen every 4 to 6 hours as needed, up to 5 doses in 24 hours. Most 9-month-olds weigh between 18 and 23 pounds, which corresponds to a 3.75 mL dose of standard infant liquid (160 mg per 5 mL). Ibuprofen is also safe for babies older than 6 months: the same weight range calls for 1.875 mL of infant drops (50 mg per 1.25 mL) every 6 to 8 hours, with no more than 4 doses per day. Always use the syringe or dropper that comes with the medicine rather than a kitchen spoon.
What Else Happens at the 9-Month Visit
Even without vaccinations, the 9-month checkup covers important ground. Your pediatrician will measure weight, length, and head circumference. They’ll assess developmental milestones and ask about what your baby is doing: whether they’re sitting independently, babbling, responding to their name, and showing curiosity about objects. You’ll be asked whether your baby has lost any skills they previously had, which can be an early signal worth investigating.
A blood draw may also happen at this visit. Screening for lead exposure and anemia is commonly done around this age, particularly for babies with risk factors. This is a finger prick rather than a full blood draw, so it’s quick.
If you’re unsure whether your baby is due for any vaccines, bring their immunization record or check with your pediatrician’s office before the appointment. They can confirm what’s needed and let you know what to expect so there are no surprises on the day.