When to see the doctor if your child is peeing a lot? If your child is peeing more frequently than usual, it could be a sign of a medical issue and you should consult your doctor for proper diagnosis and treatment. The amount of urine that is considered normal for children can vary depending on their age, diet, activity level, and other factors. It is important to be aware of any changes in the frequency or volume of your child’s urination as it may indicate an underlying health problem. Additionally, if your child is experiencing any pain or discomfort while urinating, this could also be a sign that they need to see a doctor.