Health hazards of various birth control devices include breast and cervical cancers, cardio-vascular complications, birth defects, reduced lactation, abnormal menstrual cycles, migraine headaches, hair loss, fluid retention, raised blood pressure, weight gain, emotional disturbances, and either temporary or permanent infertility.
It was estimated, in 1980, that approximately 270 million people used some form of contraception, about 2/3 of them in developed countries, and 1/3 in developing countries.
The male condom is now suspected of helping cause cancer and infertility in women, the problem being the talcum powder used by some manufacturers as a dry lubricant. Talcum powder has been shown to cause ovarian cancer and fibrosis on the fallopian tubes in women, leading to infertility.