 Another physician who promoted contraception as a way to avoid resorting to abortion found that some users had been disappointed in the womb veil; he recommended douching as a more effective means.One physician found the womb veil to be "harmless" and likely "effectual" in some cases, but thought it relied too much on women knowing how to insert it correctly, with the possibility that it might become dislodged during intercourse.Concerns about displacement of the womb veil, as well as irritation and loss of pleasurable sensation, were also expressed by the author of a 1912 book on human sexuality.