When do behavior issues start?

Behavior issues can begin as early as two years old, a stage that most parents and pediatricians refer to as "terrible twos." The stage marks a part of typical development phases in young children and includes tantrums, a lot of frustration, and defiant behavior.

During this age, your child learns to talk, walk, form opinions, understand how to share, and learn about emotions. The child will want to naturally learn about their environment and do what they want to do on their terms.

However, their verbal, emotional, and physical skills are not fully developed, and they can become frustrated quickly when they cannot communicate or perform a task.

Common symptoms of behavioral issues include:

  • Hitting

  • Biting

  • Kicking

  • Throwing things

Parent quiz: Child mental health checklist

This 3-minute, online quiz can be used if you think your child is having emotional, attentional, or behavioral difficulties.


Need to find a therapist near you? Check out the Monarch Directory by SimplePractice to find licensed mental health therapists with availability and online booking.



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