These children aren't constipated and don't seem to have any medical problems. They haven't yet learned about using the toilet for bowel movements. They usually soil their diapers or pants almost every day and have normal bowel movements. A child who gets constipated often or has bowel movements that hurt may resist toilet training. Your child could be scared of being alone in the bathroom, or scared of the toilet.
Some children use soiling as a way to control things or to get extra attention.
Others just don't want to stop playing. Your child may not have the skills yet to use the toilet. But, if your child keeps soiling after about three months of being able to use the toilet to urinate, it's probably time to learn to use the toilet for bowel movements. If other daily routines, such as getting dressed, picking up toys or going to bed are a problem, it may be best to get help for those problems before you try toilet training. Your doctor can offer advice and tell you who to call for help.