
Child abuse or child maltreatment is physical, sexual, and/or psychological maltreatment or neglect of a child or children, especially by a parent or a caregiver. Child abuse may include any act or failure to act by a parent or a caregiver that results in actual or potential harm to a child and can occur in a child's home, or in the organizations, schools, or communities the child interacts with.

Child harvesting or Baby harvesting refers to the systematic sale of human children, typically for adoption by families in the developed world, but sometimes for other purposes, including trafficking. The term covers a wide variety of situations and degrees of economic, social, and physical coercion. Child harvesting programs or the locations at which they take place are sometimes referred to as baby factories or baby farms.

Child slavery is the slavery of children. The enslavement of children can be traced back through history. Even after the abolition of slavery, children continue to be enslaved and trafficked in modern times, which is a particular problem in developing countries.

Child Soldiers in Africa refers to the military use of children under the age of 18 by national armed forces or other armed groups in Africa. Typically, this classification includes children serving in non-combatant roles, as well as those serving in combatant roles. In 2008, it was estimated that 40 percent of child soldiers worldwide were in Africa, and that the use of child soldiers in armed conflict was increasing faster than any other continent. Additionally, average age of children recruited as soldiers appears to be decreasing. As of 2017, the UN listed that seven out of fourteen countries recruiting and using child soldiers in state forces or armed groups were in Africa: Central African Republic, Democratic Republic of the Congo, Mali, Nigeria, Somalia, South Sudan, Sudan.

Lloyd deMause was an American social thinker known for his work in the field of psychohistory. He did graduate work in political science at Columbia University and later trained as a lay psychoanalyst, which is defined as a psychoanalyst who does not have a medical degree. He is the founder of The Journal of Psychohistory.

Elsagate is a neologism referring to the controversy surrounding videos on YouTube and YouTube Kids that are categorized as "child-friendly", but which contain themes that are inappropriate for children. Most videos under this classification are notable for presenting content such as graphic violence, sexual situations, fetishes, obscene language, drugs, alcohol, injections, toilet humor and dangerous or upsetting situations and activities.

Factitious disorder imposed on another (FDIA), also called Munchausen syndrome by proxy (MSbP), is a condition in which a caregiver creates the appearance of health problems in another person, typically their child. This may include injuring the child or altering test samples. They then present the person as being sick or injured. The behaviour occurs without a specific benefit to the caregiver. Permanent injury or death may occur as a result of the disorder.

A feral child is a human child who has lived isolated from human contact from a very young age, and so has had little or no experience of human care, behavior, or human language. There are several confirmed cases and other speculative ones. Feral children may have experienced severe abuse or trauma before being abandoned or running away. They are sometimes the subjects of folklore and legends, typically portrayed as having been raised by animals.

Infant crying is the crying of infants as a response to an internal or external stimulus. Infants cry as a form of basic instinctive communication. Essentially, newborns are transitioning from life in the womb to the external environment. Up to 27% of parents describe problems with infant crying in the first four months. Up to 38% identify a problem with their infant crying within the first year. Parents can be concerned about the amount of time that their infant cries, how the infant can be consoled, and disrupted sleeping patterns. Colic is used as a synonym for excessive crying of infants, even though colic may not be the cause of excessive crying.

Theresa Jimmie Francine Knorr is an American woman convicted of torturing and murdering two of her six children while using the others to facilitate and cover up her crimes. She is currently serving two consecutive life sentences at the California Institution for Women in Chino, California.

Alice Miller, born as Alicija Englard, was a Polish-Swiss psychologist, psychoanalyst and philosopher of Jewish origin, who is noted for her books on parental child abuse, translated into several languages. She was also a noted public intellectual.

Shaken baby syndrome (SBS), also known as abusive head trauma (AHT), is an injury to a child's head caused by someone else. Symptoms may range from subtle to obvious. Symptoms may include vomiting or a baby that will not settle. Often there are no visible signs of trauma. Complications include seizures, visual impairment, cerebral palsy, and cognitive impairment.

Stop Child Abuse – Trace an Object is an online campaign by Europol that shows objects which appear in the background of child sexual abuse material footage. Europol asks people to visit this website and to look at the objects. The project seeks to identify objects and their locale in order to find and aid victims; situate crime scenes; and apprehend perpetrators. Europol believes that having many people trying to identify the objects will expedite the investigative process, allowing individual law enforcement agencies to identify perpetrators and victims of child abuse faster. Individuals may submit information about objects anonymously without further contact from Europol or other law enforcement agencies. Europol's Victim Identification Task Force established the Trace an Object website as part of an overall effort to curb abuse crimes and human trafficking.

Auguste Ambroise Tardieu was a French medical doctor and the pre-eminent forensic medical scientist of the mid-19th century.

Trafficking of children is a form of human trafficking and is defined by the United Nations as the "recruitment, transportation, transfer, harboring, and/or receipt" kidnapping of a child for the purpose of slavery, forced labor and exploitation. This definition is substantially wider than the same document's definition of "trafficking in persons". Children may also be trafficked for the purpose of adoption.

Andrew Henry Vachss is an American crime fiction author, child protection consultant, and attorney exclusively representing children and youths.