A case series study of 913 infants, carried out in Sweden has shown that minimal acupuncture at Hegu L.I.-4 is an effective and easy treatment for infantile colic. The infants (mean age 5.4 weeks) had displayed colic symptoms since two weeks after birth. Light needle stimulation of Hegu L.I.-4 was performed for 10 to 20 seconds bilaterally on a daily basis for a mean of 6.2 consecutive days. Before treatment the infants were assessed by their parents whether they ‘often have inflated stomachs’ (99%), ‘seldom drool’ (76%), ‘regurgitate’ (53%) and ‘belch’ (62%). The reported frequency of defecation was five to eight times per day (64%), with a yellowish-green colour (61%) and a water-thin consistency (74%). After treatment, the variables for inflated stomachs, drooling and regurgitation were significantly improved and rated by the parents as occurring ‘sometimes’, while belching was rated as occurring ‘often’ and the frequency of defecation was reduced to one to four times per day with a mustard-yellow colour and a gruel-like consistency. The parents also rated their impression of the infants’ general colic symptoms including crying as ‘much ameliorated’ in 76% of cases. (Gastrointestinal symptoms of infantile colic and their change after light needling of acupuncture: a case series study of 913 infants. Chin Med. 2011 Aug 11;6(1):28).