Impulse-control disorder (ICD) is a class of psychiatric disorders characterized by impulsivity – failure to resist a temptation, an urge, or an impulse; or having the inability to not speak on a thought. Many psychiatric disorders feature impulsivity, including substance-related disorders, behavioral addictions, attention deficit hyperactivity disorder, fetal alcohol spectrum disorders, antisocial personality disorder, borderline personality disorder, conduct disorder and some mood disorders. The fifth edition of the American Psychiatric Association's Diagnostic and statistical manual of mental disorders (DSM-5) that was published in 2013 includes a new chapter (not in DSM-IV-TR) on disruptive, impulse-control, and conduct disorders covering disorders "characterized by problems in emotional and behavioral self-control". Five behavioral stages characterize impulsivity: an impulse, growing tension, pleasure on acting, relief from the urge, and finally guilt (which may or may not arise). Types Disorders characterized by impulsivity that were not categorized elsewhere in the DSM-IV-TR were also included in the category "Impulse-control disorders not elsewhere classified". Trichotillomania (hair-pulling) and skin-picking were moved in DSM-5 to the obsessive-compulsive chapter. Additionally, other disorders not specifically listed in this category are often classed as impulsivity disorders. Terminology was changed in the DSM-V from "Not Otherwise Classified" to "Not Elsewhere Classified". Sexual compulsion Sexual compulsion includes an increased urge in sexual behavior and thoughts. This compulsion may also lead to several consequences in the individual's life, including risky partner selection, increased chance for STIs and depression, as well as unwanted pregnancy. There has not yet been a determined estimate of its prevalence due to the secretiveness of the disorder. However, research conducted in the early 1990s in the United States gave prevalence estimates between 5–6% in the U.S. population, with male cases being higher than female. Internet addiction The disorder of Internet addiction has only recently been taken into consideration and has been added as a form of ICD. It is characterized by excessive and damaging usage of Internet with increased amount of time spent chatting, web surfing, gambling, shopping or consuming pornography. Excessive and problematic Internet use has been reported across all age, social, economic, and educational ranges. Although initially thought to occur mostly in males, increasing rates have been also observed in females. However, no epidemiological study has been conducted yet to understand its prevalence. Compulsive shopping Compulsive shopping or buying is characterized by a frequent irresistible urge to shop even if the purchases are not needed or cannot be afforded. The