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Impulsivity is the possible predictor of relapse in obesity treatment and considered as a predicting factor among patients who quit the treatment. Research has shown that obese people are more impulsive than other people. Impulsive features are especially found to be higher with those who have binge eating disorder. Impulsive people appear to have no control over their behaviors on eating and they have more interest towards food with higher calories. Suicide attempts are common in obesity and in eating disorders. Aggression and anger are among the major psychopathological features in patients with eating disorders. Some researchers correlated that disordered eating behavior in eating disorders with highself-directed hostility. It was found that these individuals have difficulty in disclosing their anger; on the other hand explosive outbursts might be occurring. Depression and anxiety disorders were found higher in patients with eating disorders with impulse control disorders, in addition ,the cluster B personality trait personality traits(especially borderline personality), and avoidant personality traits were higher in the same group. Wilma et al found elevated rate of childhood ADHD in patients with h BN (23.5%). The only previous study to have examined adult ADHD in BN found that 9% of inpatients were comorbid. Two studies found an association between childhood impulsivity and the development of BN. Cortese et al. observed a combined association between inattentiveness and impulsivity and a higher likelihood of developing bulimic behaviors. Wonderlich et al. found that impulsivity increases vulnerability for BN in general. The importance of identifying whether binge eating or purging behaviors are more closely associated with impulsivity rests on research demonstrating the negative effect of impulsivity on the course and outcome of eating disorders). Binge eating has been associated with impulse control disorders in AN, but others found that purging, not binge eating, predicted impulsive behavior in individuals with AN and bulimia nervosa (BN) , and both binge eating and purging were associated with alcohol abuse/dependence and drug abuse/dependence in a large sample of women with AN . Patients with BN clinically show increased impulsive behavior such as loss-of-control bingeing and purging. Forty percent of patients with BN also suffer from deficits in impulse control in areas other than eating, such as difficulties in managing negative emotions and sensation seeking. Comorbidity with impulse control disorder and eating disorder described as having a poor outcome. The presence of unrecognized and untreated impulse control disorders will fail the treatment of eating disorders treatment will fail.