U01.13.007 Child abuse

Learning Objectives

Master the Clinical Indicators and Epidemiology of Child Abuse. Understand the legal obligations for reporting, recognize patterns of physical and emotional trauma, and identify high-yield social and behavioral red flags required for the USMLE Step 1.


1. Legal & Professional Responsibility

In the United States, medical professionals are mandated reporters. The priority is always the safety of the child.

Category Protocol & High-Yield Facts
Reporting All cases of suspected abuse must be reported to local child protective services (CPS).
Patient Interview Interview the child separately from the caregiver to ensure safety and accuracy of the history.

 


2. Clinical Subtypes and Indicators

Abuse is categorized into four primary domains, each with specific physical and behavioral markers.

Type Signs & Red Flags Epidemiology
Neglect The most common form of child maltreatment. Includes failure to provide food, shelter, or supervision.
Physical Abuse Fractures/bruises in different stages of healing; patterned burns. Shaken Baby Syndrome (subdural hematomas, retinal hemorrhages). 40% of abuse deaths occur in children < 1 year old.
Sexual Abuse STIs, UTIs, and genital trauma. Note: Physical signs are often absent. Look for age-incongruent sexual knowledge. Peak incidence: 9–12 years old.
Emotional Abuse Poor bonding; overly affectionate with strangers. Somatic symptoms without a medical cause; aggression towards animals. ~80% meet criteria for ≥ 1 psychiatric illness by age 21.

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High-Yield Clinical Pearls:

  • Inconsistent Histories: A major red flag is an explanation that is inconsistent with the child’s developmental stage.
  • Abusive Head Trauma: Always suspect this if an infant presents with retinal hemorrhages and subdural hematoma.
  • Neglect: Neglect is the top cause of Failure to Thrive (FTT) in resource-rich countries.

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