Sexual dysfunction or sexual malfunction (see also sexual function) refers to a difficulty experienced by an individual or a couple during any stage of a normal sexual activity, including desire, arousal or orgasm.

To maximize the benefits of medications and behavioural techniques in the management of sexual dysfunction it is important to have a comprehensive approach to the problem, A thorough sexual history and assessment of general health and other sexual problems (if any) are very important. Assessing (performance) anxiety, guilt (associated with masturbation in many Indian men), stress and worry are integral to the optimal management of sexual dysfunction. When a sexual problem is managed inappropriately or sub-optimally, it is very likely that the condition will subside immediately but re-emerge after a while^{[citation needed]}. When this cycle continues, it strongly reinforces failure which may eventually cause one to not want to seek further treatment and experience symptoms all their life. It is important to get a thorough assessment from professionals and therapists who are qualified to manage sexual problems^{[citation needed]}. Internet-based information is good for gaining knowledge about sexual functioning and sexual problems but not for self-diagnosis and/or self-management.

Erik Everhard (born December 2, 1976 in Calgary, Alberta, Canada) is the stage name of Mitchell Hartwell, a Canadian pornographic actor and director, known for gonzo pornography films.

Everhard is 5'10" and 175 pounds. He is a Canadian national of Ukrainian ancestry. In 1995, he moved to Vancouver, British Columbia to attend university, at which time, he made his first forays into adult films. In 1999, he moved to Los Angeles to pursue a career in the adult entertainment industry. Everhard has appeared in over 1000 pornographic movies, and directed more than 90, most of them for Anabolic Video.^{[citation needed]}

In a 2002 interview, Everhard attributed his career choice not to financial gain but to sexual enjoyment, saying he regularly enjoys sex and masturbation off camera.

Everhard's adult film career began in Canada, performing for web sites. At the urging of friends and colleagues, he decided to work in pornography in the United States. His first shoot in the U.S. would be for upstart director in Philadelphia, Jules Jordan. The two would collaborate to shoot adult scenes over the next years with several adult actresses, including Adrianna Sage and Jeannie Rivers.