Sexual Abuse is the term used when one person performs a sexual act upon another which is unwanted, and they do it without their given consent. In some cases, especially in the case of a child, it can be without their understanding either. Sexual Abuse can happen to anyone and at any time, however children are more vulnerable as are the elderly and those with disabilities. It does not have to be physical contact, although generally this is the case, it can be noncontact abuse such as exposure, or pornography.
Sexual Abuse where contact takes place can be touching of the genitals, masturbation, oral sex, vaginal or anal penetration. Sexual Abuse pertains to any sexual act at all that is not a consensual act, where the victim has been forced, threatened or coerced into it.
The initial reaction to this happening by the victim is shock, disbelief and of course fear. However the long term effects of sexual abuse are much worse, more so for children. Not only can there be physical damage, but it is a major trauma that can lead to Posttraumatic Stress Disorder, alcohol or substance abuse, anxiety, depression and many more mental health problems.