Are temper tantrums symptoms of a disease or condition?

At what age? Tantrums are developmentally typical in the toddler-preschool era discipline means "teaching, "not punishment. If parents model self -control, set limits & discipline without anger or aggression, internalization of self-control starts at 18 months & should be well-set by 5. If not, a family systems problem, inconsistent discipline, neurodevelopmental disorder or primary mental illness may be "why.".