[Reflection of dysmenorrhea in acupoint sanyinjiao (SP 6) region].

Objective: To observe the reflection of dysmenorrhea in acupoint Sanyinjiao (SP 6) region (body surface) so as to verify the relationship between the acupoint and uterus.

Methods: A total of 60 women (15-35 years in age) including 30 primary dysmenorrhea patients (test group) and 30 healthy subjects (control group) were enrolled in the present study. The visual analog scale (VAS) score and mechanical pain threshold of bilateral Sanyinjiao (SP 6) regions were detected to assess changes of skin sensitivity in subjects undergoing menstrual pain and in the non-menstrual period.

Results: The VAS value in the menstrual period of test group was significantly higher than that in the non-menstrual period of the same one group and that in the menstrual period of the control group (P<0.01), and the pain threshold in the menstrual period of test group was significantly lower than that in the non-menstrual period of same one group and that in the menstrual period of the control group (P<0.01). No significant differences of both VAS value and pain threshold were found between the two groups in the non-menstrual period (P>0.05).

Conclusion: An obvious tenderness at Sanyinjiao (SP 6) exists in women undergoing primary dysmenorrhea, sug- gesting a close correlation between Sanyinjiao (SP 6) and uterus.