Taping the back of the knee typically involves applying kinesiology tape in an X or spiral pattern across the soft area behind the joint, called the popliteal fossa. This technique can reduce pain during activities like stepping down stairs, support the hamstring tendons where they attach near the knee, and limit hyperextension. The approach varies depending on whether you’re dealing with general posterior knee pain, a hamstring issue, or instability, but the core principles of preparation and placement remain the same.
Why Tape the Back of the Knee
The back of the knee is a common site of discomfort for people with hamstring tightness, mild hyperextension, osteoarthritis, or kneecap tracking problems. Kinesiology tape applied to this area works primarily through two mechanisms: it gently limits unwanted movement, and it provides sensory feedback that helps your brain better control the joint. A meta-analysis in BMC Musculoskeletal Disorders found that kinesiology tape produced a statistically significant reduction in pain scores compared to no tape, though the effect was modest. Interestingly, even tape that doesn’t exert much mechanical force on the joint can still provide pain relief, likely through that sensory feedback loop.
Taping is not a standalone fix. Clinical guidelines from the Royal Australian College of General Practitioners rate the evidence for pain relief at the highest level but emphasize that taping should be combined with exercise and, if relevant, weight management. Think of it as a tool that makes your rehab exercises more comfortable, not a replacement for them.
Anatomy to Be Aware Of
The hollow behind your knee contains a dense bundle of nerves, veins, and arteries running close to the surface. The main nerve sits just under the skin, and a smaller nerve on the outer side of the knee runs within about 8 to 13 millimeters of the bony bump you can feel on the outside of your thigh bone. This matters because you should never wrap rigid tape tightly around the back of the knee or apply heavy compression directly into that hollow. Kinesiology tape is elastic and low-tension, which makes it safe for this area, but rigid sports tape should only be used here under professional guidance.
Preparing Your Skin
Good preparation is the difference between tape that holds for days and tape that peels off in an hour. Start with clean, dry skin. Remove any lotion, sunscreen, or sweat with rubbing alcohol or soap and water, then let the area dry completely. If you have hair on the back of your knee or lower thigh, shave it. Body hair prevents the adhesive from bonding to the skin and will also make removal more painful. Round the corners of each strip with scissors before you peel the backing. Square corners catch on clothing and start to lift.
The Posterior X Technique
This is the most studied method for taping the back of the knee. It uses two strips of kinesiology tape that cross behind the joint in an X shape, creating support against both rotation and hyperextension.
What You Need
- Two strips of kinesiology tape, each long enough to run from mid-thigh to mid-shin (roughly 18 to 22 inches depending on your leg length)
- Scissors to round the corners
Step by Step
Stand with your knee slightly bent, about 20 to 30 degrees. This puts a gentle stretch on the tissues behind the knee and prevents the tape from bunching when you move later.
Take the first strip and peel about two inches of backing from one end. Press that anchor to the outer side of your upper thigh, above the knee, with zero tension on the tape. Now peel the backing gradually and lay the tape diagonally across the back of the knee, moving from the outer thigh toward the inner shin. Use light tension (about 25 percent stretch) as you cross behind the knee, then lay the final two inches flat on your inner shin with no stretch. The anchors at both ends should always be applied tension-free to prevent the tape from peeling up.
For the second strip, mirror the pattern. Anchor it on the inner side of your upper thigh with no tension, then lay it diagonally across the back of the knee toward the outer shin, again with about 25 percent stretch through the middle. You should now have an X shape centered on the crease behind your knee. Rub each strip firmly for about 10 seconds. The friction activates the heat-sensitive adhesive and improves bonding.
Taping for Hamstring Support
If your pain is specifically along one of the hamstring tendons near its attachment at the knee, a slightly different approach targets that structure more directly.
Cut one long I-strip measured from your sitting bone (the bony point you feel when you sit on a hard surface) down to just below the back of the knee. Bend forward at the waist to stretch the hamstring. Anchor the top of the strip at the sitting bone with no tension, then lay the tape along the length of the muscle with zero stretch, letting the stretch in your skin do the work. This provides a gentle lift to the tissue along the entire muscle.
Cut a second, shorter strip (about 4 to 6 inches). Tear the backing paper in the center and peel it away from the middle, leaving the paper attached at both ends so you can grip the tape without touching the adhesive. Stretch the center of this strip to about 50 to 75 percent and lay it horizontally across the exact point of pain behind the knee. Then lay each tail down with no tension. This creates a localized decompression strip that reduces pressure on the irritated tendon.
How Long Tape Lasts
Kinesiology tape is designed to stay on for three to five days. Most pre-cut products are water-resistant and hold through showers, swimming, and sweating. The adhesive weakens gradually over time, so the tape tends to peel naturally at the edges rather than coming off all at once. If the edges start lifting, trim them with scissors instead of pressing them back down, since reattached edges trap moisture and can irritate the skin.
To remove tape comfortably, peel it in the direction of hair growth while pressing the skin flat with your other hand. If the adhesive resists, a small amount of baby oil or coconut oil softened into the edge will dissolve the glue and make removal painless. Never rip the tape off quickly, especially behind the knee where the skin is thin.
Signs to Stop and Remove the Tape
Itching, redness that extends beyond the tape’s edges, or any blister formation means you’re reacting to the adhesive. Remove the tape immediately and don’t reapply. Some people develop sensitivity after repeated applications even if the first use was fine. Numbness, tingling below the knee, or increased swelling are signs the tape is too tight or positioned in a way that compresses the nerves and blood vessels behind the joint. This is uncommon with elastic kinesiology tape applied at low tension, but it’s worth watching for, especially if you’ve never taped this area before.
What Taping Can and Cannot Do
Taping reliably reduces pain in the short term and can make movement feel more stable and controlled. What it does not do is increase muscle strength. Clinical testing shows no significant difference in the force your quadriceps or hamstrings can produce with or without tape. It also doesn’t measurably change your knee’s range of motion or the accuracy of your joint position sense. The benefit is primarily about comfort and confidence during activity, which can be valuable on its own, especially if pain has been limiting your ability to exercise. Pair taping with a strengthening program focused on your quadriceps and hamstrings to address the underlying issue rather than just managing symptoms.