In an official report, Acupuncture: Review and Analysis of Reports on Controlled Clinical Trials, the World Health Organization (WHO) has listed the following symptoms, diseases and conditions that have been shown through controlled trials to be treated effectively by acupuncture:
low back pain
neck pain
sciatica
tennis elbow
knee pain
periarthritis of the shoulder
sprains
facial pain (including craniomandibular disorders)
headache
dental pain
tempromandibular (TMJ) dysfunction
rheumatoid arthritis
induction of labor
correction of malposition of fetus (breech presentation)
morning sickness
nausea and vomiting
postoperative pain
stroke
essential hypertension
primary hypotension
renal colic
leucopenia
adverse reactions to radiation or chemotherapy
allergic rhinitis, including hay fever
biliary colic
depression (including depressive neurosis and depression following stroke)
acute bacillary dysentery
primary dysmenorrhea
acute epigastralgia
peptic ulcer
acute and chronic gastritis
The foregoing list is absolute concerning acupuncture's effectiveness; however the report continues with three more categories:
Diseases, symptoms and conditions for which the therapeutic effect of acupuncture has been shown, but further proof is needed (68 specific conditions). These conditions are effectively treated as in the first category; it's just that more trials are necessary to establish the proof scientifically.
Diseases, symptoms and conditions reporting some therapeutic effects for which acupuncture is worth trying (nine conditions).
Diseases, symptoms and conditions in which acupuncture may be tried, provided the practitioner has special modern medical knowledge and adequate monitoring equipment (eight conditions).