Head banging is a behavior characterized by a toddlers repeated banging his or her head, against a solid surface or object such as a wall or the side of a crib. It is estimated that one-fifth of all healthy children display this behavior at least once during their infancy. Moreover, this disturbing behavior is more common in boys than in girls. Head banging usually starts around the age of nine months and ceases by the time the child is two years old. Causes The exact causes are not known though the reason may include: Comfort Odd as it may sound, some experts believe that head banging, along with other rhythmic movements such as body rocking and head rolling, may be a source of pleasure or comfort to a toddler. Though parents may be concerned about the pain caused by the behavior, it may be producing a soothing effect for the one doing it. Pain relief Head banging ma stretch mark cream y also help to relieve pain in another part of the body, such as that caused by an ear infection, by serving to distract the child. Attention Some children may simply bang their heads to draw attention or out of anger, a strategy that usually succeeds, as worried parents show more concern. Disorders In addition, head banging is often associated with autism and other disorders. However, head banging itself does not indicate a serious disorder. Treatment Contrary to what most people think, the objective is rarely self-injury, and usually this habit does not lead to fractures or bruises. Most children with this symptom have been seen growing up as normal, well-adjusted adults. Positive reinforcement is necessary to reassure toddlers when they are not banging their head. During bouts of head banging, parents need to avoid making a fuss or encouraging this behavior further.