San Yin Jiao (SP6) is commonly used for urological, pelvic disorders, insomnia, and menstrual cramps.
San Yin Jiao (SP6) is commonly used for urological, pelvic disorders, insomnia, and menstrual cramps. San Yin Jiao (SP6) is located on the inside of your leg, just above your ankle. To find this point, (1) locate the highest peak of the ankle then (2) four finger widths up your leg, apply deep pressure slightly behind the bone (tibia) and massage the area for 4-5 seconds. A precaution for this point: San Yin Jiao (SP6) should not be used in pregnancy because this point may induce labor.

The point is located in the medial side of the leg.

Point is located four finger space above the ankle in the depression under the bone (tibia).

Apply pressure and massage for 4-5 seconds.
Many studies have shown that using acupressure to stimulate San Yin Jiao (SP6) has effectively alleviated pain and menstrual distress in young women with menstrual cramps [2] as well as improving women’s general health [1].
References
- Kashefi F, Khajehei M, Ashraf AR, Jafari P. The efficacy of acupressure at the Sanyinjiao point in the improvement of women's general health. J Altern Complement Med. 2011 Dec;17(12):1141-7. Epub 2011 Nov 14.
- Wong CL, Lai KY, Tse HM. Effects of SP6 acupressure on pain and menstrual distress in young women with dysmenorrhea. Complement Ther Clin Pract. 2010 May;16(2):64-9. Epub 2009 Nov 14.