The Yin-Yang theory holds that disease is a result of an imbalance between yin and yang which leads to the hyperactivity or hypoactivity of yin and yang. The occurrence and the development of a disease are also related to zheng qi (body resistance or antipathogenic factors) and xie qi (pathogenic factors). The Yin-Yang theory can be used to generalize the interacting relations between body resistance and antipathogenic factors.
1 Colposcopy is a procedure used by physicians that provides a magnified and illuminated view of the vulva, vaginal walls, and uterine cervix. 2  This procedure is often done to evaluate an abnormal appearing cervix or an abnormal Pap smear result.
Colposcopy usually takes anywhere from 10 to 30 minutes. It can be done in a doctor's office or in a hospital's outpatient clinic. The colposcope may be equipped with a camera so that the doctor or nurse can take pictures of the vagina and cervix.