 [ Symptoms ] could a closed head injury cause early onset dimentia years after the injury  my x husband had a closed head injury when he was 17 he was in a coma for a month he had to relearn everything he lived normal life except short term memory loss last few years he is been exhibiting strange and unsafe behaviors and i just found out he is been wetting and soiling his pants could this be dementia he is the father of my kids and i am concerned [ Disease ] i am sorry to hear what your ex husband is going through it must be a frightening time for him you ask a good question regarding a traumatic brain injury and the possible link to dementia i think the jury is still out on that one we suspect there may be a link but i do not believe researchers have confirmed this regardless your ex husband is symptoms should be evaluated by his primary care provider if you have a good relationship with your ex you might urge him to seek care out of concern for his well being your first responsibility in the situation is your children is safety obviously i cannot and would not presume to give legal advice if you feel it is unsafe for your husband to drive your children or have contact with them you should engage an attorney wishing you well