Some common symptoms of Behavioural Disorder are-

- Irritable, excessive angry, annoying behaviour
- Difficulty in learning but not due to intellectual, sensory or health reasons
- Inappropriate behaviour like bullying, threatening, provoking, cursing, fighting, insulting
- Always blame others
- Does not follow rules or obey others
- Defiant behaviour
- Does not listen to anyone including authoritative figure
- Non cooperative
- Throws frequent tantrums
- Argues & bullies with others
- Frequent lying
- May steal, shoplift, hurt others, hurt animals
- May destroy property, break into other's house, start unnecessary fight with people
- Poor academic or work performances, despite full efforts
- Hyperactivity, fidgeting, restlessness