Much physical violence against children in the home is inflicted with the object of punishing. Overlapping definitions of physical abuse and physical punishment of children highlight a subtle or non-existent distinction between abuse and punishment, but most physical abuse is physical punishment "in intent, form, and effect". As of 2006, for instance, Paulo Sergio Pinheiro wrote in the UN Secretary-Generals Study on Violence Against Children:

Corporal punishment involves hitting (smacking, slapping, spanking) children, with the hand or with an implement – whip, stick, belt, shoe, wooden spoon, etc. But it can also involve, for example, kicking, shaking or throwing children, scratching, pinching, biting, pulling hair or boxing ears, forcing children to stay in uncomfortable positions, burning, scalding, or forced ingestion (for example, washing childrens mouths out with soap or forcing them to swallow hot spices). Most nations with child abuse laws deem the deliberate infliction of serious injuries, or actions that place the child at obvious risk of serious injury or death, to be illegal. Bruises, scratches, burns, broken bones, lacerations — as well as repeated "mishaps," and rough treatment that could cause physical injuries — can be physical abuse. Multiple injuries or fractures at different stages of healing can raise suspicion of abuse. The psychologist Alice Miller, noted for her books on child abuse, took the view that humiliations, spankings, and beatings, slaps in the face, etc.
These children seem to have learned to adapt to an abusive and inconsistent caregiver by becoming cautiously self-reliant, and are often described as glib, manipulative and disingenuous in their interactions with others as they move through childhood. Children who are victims of neglect can have a more difficult time forming and maintaining relationships, such as romantic or friendship, later in life due to the lack of attachment they had in their earlier stages of life. Effects
Child abuse can result in immediate adverse physical effects but it is also strongly associated with developmental problems and with many chronic physical and psychological effects, including subsequent ill-health, including higher rates of chronic conditions, high-risk health behaviors and shortened lifespan. Child abuse has also been linked to suicide, according to a May 2019 study, published in the Cambridge University Press.Maltreated children may be at risk to become maltreating adults. A 1991 source reported that studies indicate that 90 percent of maltreating adults were maltreated as children. Emotional
Physical and emotional abuse have comparable effects on a childs emotional state and have been linked to childhood depression, low self-compassion, and negative automatic thoughts. Some research suggests that high stress levels from child abuse may cause structural and functional changes within the brain, and therefore cause emotional and social disruptions. Abused children can grow up experiencing insecurities, low self-esteem, and lack of development. Many abused children experience ongoing difficulties with trust, social withdrawal, trouble in school, and forming relationships.Babies and other young children can be affected differently by abuse than their older counterparts.