Hegu (LI4): Location, Gentle Pressure and Precautions

Where is LI4?

Hegu is on the back of the hand, on the thumb side of the midpoint of the second metacarpal, the bone leading to the index finger. The practical method in MSK’s patient guide uses the muscle mound that rises when the thumb and index finger are brought together. Relax the hand after identifying the region; a large area of webbing is not itself a precise point.

How does the patient guide describe pressure?

MSK describes firm but comfortable thumb pressure with a circular movement for two to three minutes. Pressure should not hurt. Avoid a site with broken skin, redness or swelling, and stop if there is pain or tingling. Do not stimulate LI4 during pregnancy; follow the guide’s precaution and consult the maternity care team.

You do not need to “find pain” to make the technique count. If hand arthritis, injury or another condition makes pressure uncomfortable, skip it and ask about other options. This page teaches no needles, electrical stimulation or burning techniques.

What can the evidence tell us?

The MSK page is patient education for supportive acupressure, not proof that LI4 treats every headache, dental problem or sleep disorder. NCCIH’s evidence overview discusses professional acupuncture. Results for needle treatment cannot automatically be assigned to finger pressure at one point.

When should massage wait?

The NHS headache guidance advises urgent assessment for concerning symptoms such as sudden severe pain, headache after injury, weakness, confusion or vision changes. Seek care rather than trying pressure first. Repeated discomfort also deserves a discussion of its cause. Whether massage feels pleasant does not determine whether an illness is present. Use an optional comfort technique alongside appropriate care, with its limits clear.