Son possiably having seizures after a fall. my son is 13 years old and fell from his bike and he was wearing a helmet. he was brusied up pretty good on the chest and hips. he said he did not hit his head or lose conciusness but his little sister said he "

Everyone : Everyone should wear a helmet when riding a bike to reduce the severity of injury to the brain when crashes happen. After a crash, the helmet should be discarded (many manufacturers have a return and replacement program) and disabled (such as by cutting the straps) so that it can not be reused. Helmets lose their shock-absorbing properties during a crash. People who hit their heads are not good sources of information about their injury, or about associated symptoms such as loss of consciousness -- witnesses are better. Being dazed or knocked out briefly is a sign of concussion, which is a brain injury. After a concussion, people often experience a syndrome that may include irritability, sleep disturbance, poor concentration, and headaches. This syndrome usually resolves after several months. It is true that brain injuries can cause seizures, but often a brain injury begins a period of heightened surveillance which detects longstanding conditions that have been hiding "under the surface." these conditions could include epilepsy. Absence seizures (or absence epilepsy) is a very specific type of epilepsy that most experts agree is a primary generalized epilepsy. ("absence" in this case is pronounced with a french accent, sort of like "ab-sahnz".) in other words, absence epilepsy is genetic, not acquired from head injuries or any other brain insult. Diagnosing conditions like absence epilepsy requires a high degree of expertise. The diagnosis is very specific, and shouldn't be a conclusion that is reached before consultation and testing by a pediatric neurologist or epileptologist. [i am going to move this discussion from "neurophysiology" to "pediatric neurology".].

Need to define: It sounds like your son had head trauma according to a witness. He may not remember which would signify head trauma. Impact 'seizures" occur at the time of the trauma and usually have no long term significance. The event needs to be defined to determine if they actually are seizures. If the seizure is a result of the trauma a brain injury has to be considered.