Sexual abuse of a child is generally defined as physical contact or other interaction between a child (under age 17, for example) and an adult when the child is being used for the sexual stimulation or pleasure of the perpetrator or another person. In addition to physical contact, sexual abuse of a child may include (1) the exposure of the genitals of an adult in the presence of a child, (2) the exposure of the genitals of a child, (3) using a child in making pornography, or (4) making a child view sexual acts or pornography.

And in some states multiple instances of sexual contact between an adult and a child may constitute the enhanced criminal offense of continual sexual abuse of a child—which is sometimes a first-degree felony offense.

In Washington State, sexual abuse of a child is addressed under various statutes that criminalize sexual misconduct with minors. The state defines a child as anyone under the age of 18. Sexual abuse can include any form of sexual contact or conduct between an adult and a minor, including but not limited to touching for sexual gratification, exposing oneself or the child, involving a child in the production of pornography, or causing a child to witness sexual acts. Washington law recognizes the severity of sexual abuse of minors and has provisions for enhanced penalties for certain offenses, such as those involving multiple instances of abuse or particularly vulnerable victims. For example, the crime of Child Molestation in the first degree involves sexual contact with a child under the age of 12 and is a Class A felony. Additionally, the state has a specific statute for the crime of Sexual Exploitation of a Minor, which includes producing, possessing, or distributing sexually explicit material involving a minor. These offenses are taken very seriously and can result in severe legal consequences, including lengthy prison sentences and registration as a sex offender.