Your child must be both physically and emotionally ready for toilet training. Most children are ready to start when they are between 22 and 30 months of age, but every child is different. Toilet training usually becomes a long and frustrating process if you try to start it before your child is ready.
Before children can use the toilet, they must be able to control their bowel and bladder muscles. Some signs of this control are having bowel movements around the same time each day, not having bowel movements at night, and having a dry diaper after a nap or for at least 2 hours at a time. Children must also be able to climb, talk, remove clothing, and have mastered other basic motor skills before they can use the toilet by themselves.
A child is considered toilet-trained when he or she knows that it is time to go to the bathroom and is able to climb onto and use the toilet with little help. The average time it takes is 3 months. Girls usually are toilet-trained a little earlier than boys are
Your child will likely need help with wiping after a bowel movement until age 4 or 5. He or she may also need extra help in unfamiliar bathrooms, such as public restrooms, until about age 5 or 6.