Chinese medicine has been practiced for more than 2000 years now. It has been modified and fine tuned all these years and has stood the test of time. Fine filiform needles are inserted in specific places called “acupoints” to make the “Qi” flow through the “Meridians” and bring the body to a balance.
According to acupuncture theory, the stagnation of the Qi in any one or more of the 14 Meridians in the body leads to diseases. This stagnation of Qi can be caused by various external and internal factors. Meridians are imaginary lines on the body that help restore health equilibrium similar to the imaginary latitudes and longitudes that help navigation. The external pathological factors are cold, wind, heat. Internal pathological factors could be - Emotional Causes like stress, anger, sadness or Functional Causes like Hormonal imbalance, lowered immunity, Hypersensitivity etc. Strategic insertion of fine needles into the acupoints (which have lowered electric resistance) removes the stagnation and restores the normal flow of the Qi along the channels and the patient is relieved of his or her symptoms of pain and other problems.
This Qi could be equated to oxygen carried by the blood and the acupoints to the neuromuscular nodes found along the blood vessels.
The person is seen as a whole, a bird’s eye view as opposed to considering only the diseased part. The emotion, the food, the life style and work - everything makes up who a person is.
The study of Chinese medicine takes into consideration all these aspects of a patient and comes to a diagnosis.
In the link given below, World health Organisation has listed out some of the conditions treated with acupuncture