How normal is it for a 3 1/2 year old to be violent with his younger brother?

Yes and no. Could he be jealous? A lot of children will express their jealousy with violence because they don't know how else to communicate it. Or he could be trying to get your attention. I had the same problem with my youngest daughter. She did not like the idea that there was a new baby that required a lot of my attention and time. I've found that setting aside special time with just her has helped a great deal. When I have to go shopping or run an errand I try to leave my younger son (2) with my husband and bring my now 4 year old. She loves to go and we talk in the car and she helps with the shopping and sometimes we go out to lunch. I also make special time for her when my son is taking his nap. My little guy has me constantly running as he's into everything. When he's up and about I have little time for much else. I can see how my girls would feel left out and start acting out. At this point he doesn't understand how dangerous what he's doing is. If he were older, say 5 and up, and understood the consequences then I'd maybe start to worry. Hope this helps!

He's probably jealous with his younger brother. Tell him firmly that you don't like his attitude. Take away the things that he likes or use the time-out method. When you see him being violent, immediately stop everything and take him somewhere where he couldn't do anything. Since he is 3 years old, 3 minutes of time-out would be enough. Tell him that you want him to think about what he did and you will come back when he feels sorry. After the 3 minutes, go to him and tell him that you love him and that he is a nice boy, but you don't like what he just did and make him promise not to do it again. And whenever he's being nice to his little brother, praise him, hug him, and tell him that you like what he is doing. He will like the attention and will probably stop the violence.

It is so normal my son, Is the same age and is so mean to his sister who is 2 but she as learned to hit him back and know she makes him cry, So there all ways fighting it's a mad house.This is what you should try putting your son in time out and a favorite toy away from him and let him know why your taking it away from him.I stared doing that to my son and he's doing better not hitting so much any more.

i think u should tell his dr. not 2 scare u or anthing but a friend of mine son was like that with his little sister. he even threw a iron at her. make sure u keep an eye on them a try talking to him. show him that he does not suppose to hurt his siblings. what ever u do dont snap to were ur seriouly hurt him!!!

Wow, that's scary. There may be some underlying causes for this violence. I would see a child pyschologist.

No, U dont want them to grow up hateing on each other when they get older! belive me, thats how me and my lil sister are right now cause me and her would always fight.......we dont speak to each other at all!