Dr. Phil on Spanking
Long-term consequences of spanking can include increased aggressiveness, antisocial behavior, and delinquency.
Weaker associations for spanking such as a failure to learn right from wrong, subsequent criminal behavior, mental illness, and child or spouse abuse as adults, have also been suggested.
Physical punishment can send mixed messages to a child and reinforce aggressive behavior. When parents model aggressive behaviors by spanking, they reinforce the idea that physical aggression is the way to get what you want.
Spanking is associated with a poorer relationship between the parent and child. Children who were spanked feel less attached to their parents and less trusting of them. The more the child was spanked, the less close the parent/child relationship.
In general, spanking can lead to emotional and behavioral problems, increased aggression, and use of violence to solve problems. Although many adults were spanked as children and do not view any negative consequences in their own lives attributed to spanking, it may be different for their children. Non-physical punishments take more work from parents but are also healthier options for the children. — http://psychcentral.com/blog/archives/2007/02/24/negative-consequences-of-spanking/
Linda on Spanking: I find that my clients with substance abuse, depression, anxiety and anger problems were nearly always spanked as children. Spanking can range from being hit with a hand to a belt, stick, whip or shoe etc. Spanking doesn’t change behaviors, but it does lead to lying, sneaking so as not to get caught, anger and disrespect towards the spanker, and later problems in life. Consider this, if you did it to a neighbor and it would be called battery, then it’s even worse battery to do on a child who may weigh one tenth of what you weigh. Hitting in any form in never okay. Start teaching this to your children through your own behavior.