FROM MY PT SCHOOL NOTES · GENERAL MED / WOUND CARE · CHAPTER 14
How Do You Measure and Document a Wound?
Good wound documentation helps the next clinician understand both the tissue and the trajectory.
Start with history and cause
History first: reason for referral, onset and progression, prior wound episodes, injury or procedure, medical conditions (including diabetes and vascular disease), tobacco use, mobility, sensation, medications, prior treatments, nutrition risk, activity demands, support at home and the patient’s goals.
Record consistent dimensions and tissue findings
Standardize the method across visits. ‘Bigger,’ ‘cleaner,’ and ‘looks good’ are hard to compare. A photograph may support measurements only when consent, privacy and facility rules are satisfied.
Visual study aid: measure the wound consistently
L × W — surface
12 → 6 o’clock: Head-to-toe length in centimeters, using a consistent reference.
9 ↔ 3 o’clock: Perpendicular maximum width, in centimeters.
D ↓ — depth
Document the deepest assessable point using a qualified, facility-approved method.
Record undermining/tunneling separately with a consistent clock-face location.
Compare the same method over time. Also describe tissue, exudate, edges, surrounding skin, pain and clinical changes. Original ThatPTGuy study concept adapted into responsive page blocks.
Track change and communicate
Measurement detail from the lab: record length, width and depth in centimeters using the facility’s convention (commonly head-to-toe for length and side-to-side for width). Probe undermining or tunneling only when appropriate and competent to do so; document location with a consistent clock-face reference, plus tissue characteristics, exudate, edges and periwound condition. Staging applies to pressure injuries, not automatically to venous, arterial or diabetic foot ulcers. Palpable pulses alone do not establish adequate perfusion; vascular assessment may include ABI, toe pressures or specialist studies.
Check your reasoning: Is ‘looks smaller’ an adequate substitute for consistent measurements and observed tissue findings?
No. Use a consistent method and record appropriate dimensions and features to make comparisons meaningful.
Make the clinical connection
Scenario: A wound is measured at two follow-up visits, but one clinician records maximum length while the other measures in a different orientation.
What is the next reasoning step?
Reasoning: The values may not be directly comparable. Use a consistent documented convention, including length, width, depth and any undermining or tunneling when appropriate. Interpret the trajectory with tissue status and symptoms.
Common mistake: Calling a wound ‘smaller’ when technique changed between visits. Remember: Consistency makes measurements meaningful.
Source: my General Medical / Wound Care class-note companion, wound section(s) 3. This is a conceptual educational lesson, not a wound assessment credential or a patient-specific treatment protocol. Dressing, staging and intervention decisions require appropriate training and current professional guidance.
