How do you measure wound depth?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: June 27, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

To measure wound depth, use a sterile cotton-tipped applicator or probe and gently insert it into the deepest part of the wound, then mark where it meets the skin surface and measure this distance with a ruler, as this method is supported by recent clinical guidelines and studies, such as 1. When measuring wound depth, it is essential to prioritize the patient's comfort and safety to avoid causing pain or further tissue damage. The process should begin with cleaning your hands and wearing gloves, followed by disinfecting the wound area with saline or an antiseptic solution. For wounds with tunneling or undermining, the probe should be inserted at different angles to accurately determine the extent of the wound. The findings should be documented in centimeters, noting the location of the deepest point.

Key Considerations

  • Always prioritize patient comfort and safety during the measurement process.
  • Use sterile equipment to prevent infection.
  • Document measurements accurately for tracking healing progress and determining treatment strategies.
  • Consider using specialized tools like wound depth gauges or ultrasound imaging for more precise measurements, as mentioned in 1.

Clinical Context

Measuring wound depth is crucial for assessing the severity of the wound, tracking healing progress, and identifying potential complications early, such as abscess formation or involvement of deeper structures 1. This information is vital for determining appropriate treatment strategies and for patient care planning. By following a standardized and gentle approach to measuring wound depth, healthcare providers can ensure accurate assessments while minimizing the risk of causing additional harm to the patient.

From the Research

Methods for Measuring Wound Depth

There are several methods for measuring wound depth, including:

  • Contact methods, such as tracing and using a depth gauge 2
  • Non-contact methods, such as digital photography and laser-assisted wound measurement devices 3, 4
  • Using a handheld wound measurement and documentation device, which can measure wound surface area and depth 5

Tools for Measuring Wound Depth

Some of the tools used to measure wound depth include:

  • Rulers 3
  • Digital cameras 4, 5
  • Laser-assisted wound measurement devices, such as the LAWM device 3 and the ARANZ Medical Silhouette Mobile 4, 5
  • Handheld wound measurement and documentation devices, such as the SilhouetteMobile 5

Accuracy and Reliability of Wound Depth Measurements

The accuracy and reliability of wound depth measurements can vary depending on the method and tool used. For example:

  • The LAWM device has been shown to provide accurate measurements of wound area, but artificially low measurements of depth and volume 3
  • The ARANZ Medical Silhouette Mobile has been found to be accurate and reliable in clinical practice trials 4
  • The SilhouetteMobile has been shown to have low intra- and interrater variation, and can provide immediate feedback on wound healing progress 5

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Wound-measuring methods.

Community nurse, 1997

Research

Validation of a laser-assisted wound measurement device for measuring wound volume.

Journal of diabetes science and technology, 2013

Research

Clinical evaluation of a wound measurement and documentation system.

Wounds : a compendium of clinical research and practice, 2008

Research

The reliability of a handheld wound measurement and documentation device in clinical practice.

Journal of wound, ostomy, and continence nursing : official publication of The Wound, Ostomy and Continence Nurses Society, 2011

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.