The no diaper baby method is when you raise a baby without diapers.
Basically the no diaper baby method is where you learn to recognize your baby's natural signals for needing to pee or poop and then you respond to the baby's signals for needing to pee or poop by taking them to a potty and holding the baby over a potty or toilet to pee or poop.
The no diaper baby method is also known as EC or Elimination Communication and is a way for you to help your baby avoid the use or minimize the use of diapers by anticipating the baby's needs and providing them with an appropriate place to eliminate or pee or poop instead of the diaper.
Some parents do the no diaper baby method or elimination communication full time and others use it part time and still have the baby wear diapers some of the time and at night.
The no diaper baby method is not always a good option for some parents but if your with your baby a lot then it can be a good way to help your baby stay cleaner and healthier and save you money on diapers and the need for clean up.
For parents that are working a lot then it is not always practical.
If you do try the no diaper baby method and decide it's not for you, then it's okay to go back to diapers for your baby.
Diapers are healthy for babies and kids to wear and use when they can't use the toilet on their own or are not ready as long as you clean them up and change their diapers often enough.
The no diaper baby method also helps to eliminate the need for potty training as you're already effectively potty training your baby and if they don't wear diapers then they will simply instead learn to use the toilet easier than if they were in diapers.