A 1-month-old male has bilateral circumferential superficial burns from mid-calf to toes after being placed in a tub with hot water. What is the most likely cause?

• A. Life-threatening injuries
• B. Accidental trauma
• C. Non-accidental trauma
• D. Limb-threatening injuries

Answer: (C)

This scenario hinges on recognizing injury patterns that point to non-accidental trauma. The description of bilateral, circumferential superficial burns spanning from mid-calf to toes after immersion in hot water is highly characteristic of forced immersion, a method sometimes used in child abuse. When a caregiver holds an infant in hot water, the burn lines are typically very well demarcated, with a uniform distribution on both legs and a clear “water line,” reflecting immersion rather than a single accidental splash. The symmetry and the location across both legs strongly raise concern for abuse, because an infant would not typically cause or sustain this pattern by a normal bath activity.

These burns are described as superficial, and while depth isn’t stated, the pattern itself—not depth—drives the concern. It’s not primarily about life-threatening or limb-threatening injury here; those would depend on depth and total body surface area. Instead, the key teaching is that this specific distribution and bilateral presentation in such a young infant point toward non-accidental trauma and the need for appropriate safeguarding and reporting.