Since April 1978,He-Ne laser beam(20 mW)have been using for treatment of patients suffered from adnexitis in our hospital.The fields for irradiation on the patients were selected according to the related points of acupuncture.The results were quite satisfactory.The to tal effective rate was as high as 93.6% for the patients with moderate to severe symptoms and signs. Two of them proved to have tubal obstruction were pregnant after treatment. Some patients with followd-up laboratory survey showed that their abnormal ESR rate and WBC count had returned to normal value. Basal body temperatures,vaginal smeans for hormonal evaluations and urinary pregnandiol estimations that the dosage of the laser beam used did not alter normal ovarian functions. After the treatment,the abnormally high viscosity of blood found in these patients had restored to normal range and the changes were usually proportional to the degree of the clinical improvements. The related or subjected area to laser beam of the experimental rabbit showed same degree of capillary dilatation and plasma exudation. The above results were only our preliminary findings,and more extensive studies must be conducted before any definite conclusion can be drawn.