Toilet training is the process of teaching a child to use the toilet for urination and defecation instead of diapers. This typically begins between the ages of 18 months and 3 years, depending on the child's readiness. Parents often look for signs of readiness, such as showing interest in the toilet or staying dry for longer periods. The training usually involves introducing the child to the toilet and encouraging them to sit on it regularly. Positive reinforcement, like praise or rewards, can help motivate the child. Consistency and patience are key, as accidents are common during this learning phase.