This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages without signing in

Lower limb dermatomes

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The lower limb dermatomes are the areas of skin on the lower limb that are supplied by the afferent fibres of a single spinal posterior nerve root.

An approximate guide is as follows:

ROOT AREA SUPPLIED

  • L2 upper thigh
  • L3 around the knees
  • L4 medial aspect of the leg
  • L5 lateral aspect of the leg, medial side of the dorsum of the foot
  • S1 lateral aspect of the foot, the heel and most of the sole
  • S2 posterior aspect of the thigh
  • S3, S4, S5 concentric rings around the anus, the outermost of which is S3

Click here for an image of dermatomes

 


Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.