Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 2/1/2026

Guidelines for Documentation and Evaluation of Cord‑Whip Injuries in Suspected Child Physical Abuse

1. Comprehensive Injury Documentation

  • Detailed photographic documentation together with written descriptions of injury location, pattern, size, and color is essential because cord‑whip injuries are superficial soft‑tissue sentinel markers that support forensic and legal proceedings. 1
  • Record the precise anatomical location of each lesion (e.g., posterior thorax, lateral thigh, buttocks) and indicate whether the site is typical for abuse versus accidental injury. 1
  • Describe the injury pattern; cord‑whip marks are characteristically linear, looped, or parallel, and the pattern helps infer the type of implement used. 2
  • Measure each lesion’s length and width in centimeters and note these dimensions in the chart. 1
  • Document the exact color of each lesion (e.g., red, purple, brown, yellow‑green); color assists with injury dating, although dating by color alone is unreliable. 4
  • Count the total number of injuries and indicate whether they appear in clusters or across multiple regions, as multiple injuries strongly suggest abuse. 5
  • Include the child’s developmental history (motor capabilities) to assess whether the reported mechanism of injury is plausible for the child’s age and abilities. 5

2. Ancillary Imaging Recommendations

  • Perform a complete skeletal survey in children ≤ 24 months because occult fractures are present in 11–20 % of abuse cases even when not clinically suspected. 5
  • Obtain a non‑contrast head CT in neurologically asymptomatic young infants, since occult intracranial injury occurs in approximately 29 % of such cases. 5

3. Mandatory Reporting Triggers

  • Report to child protective services when the injury pattern is inconsistent with the provided history or suggests inflicted trauma (e.g., linear whip marks from cords). 1
  • Report when multiple injuries of differing ages are identified, indicating ongoing or repeated abuse. 5
  • Report when the injury is inconsistent with the child’s developmental capabilities. 5