[Mathew's clip, an alternative for removal of IUDs with no visible threads. Experience of Family Planning Service].

Background: The absence of IUD visible threads in the cervix is a complication of the intrauterine device. The IUD withdrawal in these cases was performed with Novak cannula or curettage instrumented under anesthesia and surgery. Its extraction with Mathew clip is an alternative.

[Complex location of a single rod contraceptive implant].

Background: The subdermic single-rod contraceptive implant is used for more than 2.5 million of womens around the world (in Mexico there are around 600 000 collocated implants). in a small number of cases an incorrect insertion procedure is caused by a complex localizaron.

[Risk factors associated, diagnostic methods and treatment for endometriosis, used in clinical service endometriosis gynecology Hospital General de Mexico (2009-2011)].

Background: Endometriosis no ectopic endometrial stroma and glands. Have different risk factors. Four theories explain it: the theory of coelomic metaplasia, embryonic cell debris, deployment and immunological.

[Risk factors for cervical cancer].

In the following document a case and control study carried out in the Hospital General de Mexico is presented. The research obtained and analyzed facts related to social and cultural issues, as well as the obstetrics and gynecologist background, stating for each one of them, the relative risk and its statistical meaning with a trust degree of 95%. All of these aspects are considered critical causes for the development of cervix and uterine cancer.