If a husband hits his wife...what are the causes? is he considered abusive and dangerous for the rest of their lives? hitting was twice in 4 months time knowing they are married since 5 years....

Cannot predict: Take a look at his overall behavior. A man should never hit a woman. Top causes are personality disorders, depression, anxiety, ptsd, substance abuse, bipolar disorder, intermittent explosive disorder. Does he have a conscience? Does he show remorse? Has he hit other women before u? Is he a sociopath, paranoid, narcissist, or borderline? Does he love money more than he loves you? Are you number one priority in his life? Has he been loyal to you? Are you afraid around him? Please explore these potential issues in therapy. Work with the therapist to reach some conclusions. If he refuses to go to therapy with you then the prognosis is not good. If he cannot admit that he has any faults prognosis is poor. For your sake find out more about your husband's character and then you will have a better ability to predict such behavior in the future.Best wishes and please take care of yourself.