Figure Using a Semmes Weinstein Monofilament to Screen the Diabetic Foot For Peripheral Sensory Neuropathy

1) Show the monofilament to the patient and touch it to his/her arm to demonstrate that it does not hurt.

2) Use the Semmes-Weinstein 5.07/10 gram monofilament to test sensation at the indicated sites on each foot*. Avoid applying the monofilament to calluses, ulcers, or scars.

Foot Monofilament

3) Hold the monofilament perpendicular to the skin and touch it to the skin using a smooth motion with sufficient force to cause the filament to bend. The test should take about 1-1/2 seconds at each site.

Figure 1

Figure 2

Figure 3

4) Ask the patient to respond "yes" when the filament is felt. If the patient does not respond when you touch a given site on the foot, continue on to another site in a random sequence. When you have completed testing all sites on the foot, re-test any site(s) where the patient did not feel the filament.

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