Mainstream medicine is often criticized for focusing solely on symptoms and direct effects, but that’s not entirely accurate. In fact, the widespread awareness of side effects shows that doctors understand the body as a complex system. Most people associate side effects with something negative, yet there are also positive ones. For instance, when you follow your doctor’s advice to exercise, you may notice positive ripple effects, such as improved sleep, a better mood, and smoother digestion.
Similarly, beneficial “side effects” are the hallmark of activating acupoints. A good example is Shou San Li (Arm Three Miles, LI10), an acupoint on your forearm. Although its benefits might not seem directly related at first, its role along the Large Intestine meridian explains why it is helpful in various practical situations.
Classic Role
Shou San Li was first recorded in the “Zhen Jiu Jia Yi Jing” (“The A-B Classic of Acupuncture and Moxibustion”). It belongs to the Large Intestine meridian, which is said to be rich in blood and qi. Due to its circulation-boosting effects, this point is often used in pain treatment. This ability to invigorate the meridian that extends all the way to the face makes Shou San Li one of the key points in facial and beauty acupuncture as well. Interestingly, the Yellow Emperor’s Canon also recommends using Shou San Li for lower back pain.
Practical Uses
Shou San Li is used to stimulate the relief of pain, numbness, and poor mobility in the arms. It is especially common for cases of chronic pain where symptoms extend from the shoulder to the hand. In beauty acupuncture, it helps improve blood and qi circulation, which in turn supports a healthy skin tone and complexion, resulting in a radiant, healthy glow.
In line with classical literature, Shou San Li is also used to treat lower back pain, but it is not suitable for every case. It is thought to be especially effective for pain resulting from physical overuse or a sprain, when the pain is limited to the muscles along the spine. However, keep in mind that serious kidney problems can sometimes manifest as lower back pain. If your pain persists, consider consulting your physician.
Clinical Research
Shou San Li appears frequently in modern research-backed acupuncture protocols. A data-mining study reviewed 42 clinical papers on acupuncture treatment for amyotrophic lateral sclerosis. Among 141 total acupoints identified, Shou San Li consistently appeared alongside high-frequency core points such as Hegu (LI4), Quchi (LI11), and Zusanli (ST36). Although not listed as part of the main prescription, Shou San Li’s strong connection with other core points indicates its supportive and strategic value.
Another study evaluated the use of turmeric blistering moxibustion plaster for post-stroke hemiplegic shoulder pain. Participants were divided into two groups: one received standard treatment, and the other received additional moxibustion plasters at acupoints, including Shou San Li. The results showed that the group using a combination of the two therapies had better pain reduction, improved shoulder mobility, and greater motor function.
How to Locate and Stimulate Shou San Li
To find Shou San Li, bend your arm and rotate the forearm so the palm side faces inward and the thumb side points up. Picture a line between your wrist—starting at a spot near the thumb tendons—and a point halfway between your outer elbow bone and the elbow crease. From the elbow point, measure down two thumb-widths along this line. Gently press around this area to find a spot that feels tender or sore to the touch. That’s the acupoint.
Ways to Stimulate Shou San Li
- Firm pressure: Press firmly for three to five seconds, then relax for three seconds. Repeat for one to three minutes on each side.
- Circular massage: Massage in small circles with your index finger or thumb for one to three minutes on each side.
- Herbal patch: Apply an herbal patch overnight for longer activation.
- Advanced methods: Acupuncture, gua sha (scraping), or moxibustion (a gentle heat therapy using dried mugwort) by a trained professional can deepen the therapeutic effects.
Precautions
Avoid stimulating this point if there is any injury in the area. When using an herbal patch, opt for skin-safe ingredients, especially if you have sensitive skin.
A Small Step With a Big Effect
Even if we frame Shou San Li’s effects in conventional terms, its uses still make sense. Beauticians often highlight the connection between digestion and skin quality, saying that healthy skin starts in the kitchen, so a point on the Large Intestine meridian influencing skin isn’t far-fetched. For optimal results, consistency is key. Add Shou San Li to your beauty routine and observe what shifts in your body and energy over time.
TCM expert Shihhsiang Hung reviewed this article for accuracy and clarity.
