My brother is 14 years old. Since his childhood he posses with very aggressive nature, stubborn, and very selfish. He can stand with anyone & he don't have any friend. He always think of himself that's why he fought with every one n don't listen to any one and got irritated on small things. Once we can consider this a personality trait or variety in child behavior. But he doesn't think & speak according to his age. He is 14 n talks likes a 8-10 years boy. He got irritated on very small things. Sometimes without any reason n when he is angry he gets mad, he hurt himself physically, slaps himself very tightly, eat rotten things & vegetables peels, once he dipped his slipper in tea n drink dat. He licks slipper also. He often threaten us that he will kill himself, send him to orphanage, I don't want to live long, everyone scolds me, no one can stop this at dat time, physically also he can't be control, he throw things, clothes, mobile etc. And few time he wounded himself wife fork, once threatening with knife. And he don't want to go school, he got irritated on teachers. About one - one month he didn't go to exams even sometimes skip his exams also. He got beaten very badly 4 dis thing bt nothing works, he is used to with this. Ne never cries when he was beaten, nor a single tear appears into his eyes. He'll die bt nvr go. No power on earth can change his mind. Even I got hurts wen I saw this and marks on his body bt de did not feel anything n after some time he behaves normally. Don't have any regret that is doing wrong. No stress or pain can not be seen on his face. Infact he fully enjoys whole day. And in addition he make high demands n few times he put conditions for going school. And wen his demand get full filled he happily go 2-4 day again got irregular. He is in 8th standard and I didn't think he had continuously attend d school more than a week. We have changed so many schools bt he never get comfortable in any school. Till 3rd he was comfortable but nor regular there also. He always got 94-98% till den. Bt after completed dat primary school he is transformed. He don't have adjusting & compromising nature not even for his parents or siblings. He loves his family a lot n also can't live without us. But for him HE himself comes first. On 5 JUNE OUR "MOM EXPIRED" due to Cancer. He lover her a lot n got pampered by her a lot. She was d only one who calm down her mostly & convince him to go school. He always sleep wit mom. He calls her to make him sleep. N after that she can go. BT now he never talks about her n did not said to anyone dat he misses her. 4-5 days he talks abt her. He has very easily excepted her death. Dat was surprising. It was not easy for his age. We were in hospital n was mentally prepared. He calls every hour to know abt her n we never tell d truth n said pray 4 her. He was very concern n whole time pray 4 her. Now he is 2 times more arrogant n rude, n dangerous for himself. He has quit his studies, whole day wat h TV or play games on mob. N always laying on bed whole day. Very rarely he sits when he is asked to do. In dat also he gets irritated. Now he never talks politely wid us esp wen we asked about him or his hygiene. He has become so lazy that he CNT give one glass water to anyone. That's a huge burden 4 him. His body reaction n face expressions reveal every thing. Sometimes he is talks very friendly. Wen ever I got sick he do a lot work. Make tea 4 me. Bring everything which I asked. Days d whole story & in this session he has attended classes max 10 days. He had d worst bad habit of chewing sweet flavoured supari. Since 6-8 months he is addicted to that BT now from a month he is eating 20-25 packets per day. Sometimes more dis also. His health is getting down. Whats can be d reason 4 his behaviour. Now its at peak and effected by his. Addiction also. Dat doesn't contains tobacco bt there is something in dat which makes him addicted to this level. Once I have eaten dat head started shaking 4 few sec. N rechecking dis twice, result was d same. Even I also got effected n wanted to eat that again. He is trying to leave bt his efforts fail every time. Since last 4 days he has reduced to 2-3packets n sometimes whole day he did not eat. We can't blame mom's death or eating supari as since childhood he is irritating n runs away from school. Now that had increase to max. He didn't listen to anyone nor he is afraid of anything. Sometimes listen to me bt put one desire or demand. 1. What's d permanent solution of this problem? We are now polite with him and dealing him with love n didn't force 4 anything, bt this alone can't work. 2.Did I need to refer a neuro-physician first. May be he had some hormonal disturbance/disbalance since childhood. 3.Or is this a complete psychological case?