Endometriosis is cut or vaporised with an electric current or laser. It ranges from a simple, 20 minute operation to complex surgery involving important organs such as the bowel and bladder.
Male contraceptives have been under development for at least the past 50 years, because of the success of the female pill and pessimism about men taking a pill.
There are more than 30 different types of contraceptive pills. But brand names such as Microgynon, Levlen, Yaz and Brenda give little indication of the ingredients, dose or who should use them.
Women on the pill are able to manipulate or suppress their menstrual cycles to have fewer "periods", or to avoid bleeding at important or inconvenient times.
We usually focus on the physical health effects of the pill, yet the most common reason women stop or change the pill is mental health side effects.