So at a one year visit a baby will have a full physical exam.
The doctor is going to ask you about the baby's development. The baby might be saying one or two words at this time. Babies usually say dada first cause moms always say they don't say Mama but dadada is an easier sound for the babies to make.
Babies should start using the sound like dada or mama specific around 12 months of age. At 12 months a lot of babies are trying to walk. Some are already walking so you want to make sure that your house is baby proofed. At 12 months your baby will get the measles, mumps and rubella vaccine and the varivax vaccine which is the chickenpox vaccine.
Most doctors offices at 12 months old do a CBC which is a complete blood count and in some states you will get a lead level, depending on the risk of lead in your state or your city. 12 months it's a lot of anticipatory guidance regarding feeding. Babies usually eat 3 meals a day at 12 months including 2 healthy snacks. So the snacks might be fruit or vegetable or some kind of little cracker or cheese. At 12 months old most babies transition to whole milk. We do not recommend using low fat milk unless your doctor says that there is an issue. To use low fat milk we recommend whole milk until 2 years of age. If you are nursing you can continue nursing as long as you like and then that baby does not need to have whole milk. At 12 month of age babies will be exploring. They often try to get out of their crib at 12 months of age so it's very important to have your mattress set to the lowest setting in the crib because the baby will try to flip themselves out of the crib if they can crawl out. At 12 months of age the babies like to be read to. They like to listen to music. They like to be interactive with the book so you might give your baby a book to sit with and the baby will try to read to themselves.
They often hold the book upside down and tell themselves the story in a baby talk. Babies like to play with blocks at this age. And it's a very fun age to watch your baby grow.