[Quantification of menstrual bleeding in women using intrauterine devices (IUDs)]

A study in the changes of menstrual blood loss produced by the of 11 different intrauterine devices (IUDs) in 319 voluntary women attending a voluntary program for Family Planning at the Instituto Mexicano del Seguro Social (IMSS). The results showed that two IUDs increased bleeding above 80 mL in the case of Lippes Loop D and the copper T 380. The following IUDs: Cu T 200 and 220, as well as ML-250 increased blood loss moderately; copper 7 produced a slightly higher blood loss (not statistically significant) "T" IUDs liberating progesterone or progestagens (Nor 8; Nor 2; Net 10) all produce a significant decrease of the menstural flow, reaching 93.5% (of the control value) in women using "T" IUDs liberating 8 micrograms of Levonorgestrel. Excessive bleeding in women with IUDs (over 80 ml) is checked significantly by the use of non-steroid anti-inflammatory prostaglandin synthesis' inhibitors such as 500 mg of mefenaminc acid or 250 mg of Naproxen thrice daily for 5 days.