An Italian study (2009) examined results from women treated with individualised homeopathy for amenorrhoea and oligo-amenorrhoea to determine whether or not this form of intervention could be shown to provide any benefits. Data from 18 consecutive patients with these conditions over an average treatment period of 21 months were collected. From this it was found that constitutional homeopathic treatment was associated with an increase in the average frequency of spontaneous menstrual cycles per year from 4.32 before treatment to 9.6 cycles per year by the end of treatment period.

Cardigno P. Homeopathy for the treatment of menstrual irregularities: a case series. Homeopathy, 2009, 98, 2, 97-106