A Little on LARCs--"the major postfertilization effect is destruction of the early embryo in the fallopian tube, in the same way that the major prefertilization effect is likely to be destruction of sperm and ova. For the copper IUD, this embryocidal effect may be more a result of inflammation and direct toxicity, whereas with the progestin IUDs it may result more from inhibition of transport through the fallopian tube, along with prevention of implantation.”
IUD IUD stands for intrauterine device, a T-shaped piece of plastic that is placed inside the uterus by a doctor. The copper IUD, ParaGard, works for as long as 12 years. The hormonal IUD, Mirena, must be replaced after 5 years. Both types make it more difficult for sperm to fertilize the egg. Fewer than eight in 1,000 women get pregnant. Pros: Long-lasting, low-maintenance. Cons: Irregular or heavier periods. More expensive upfront, may slip out, may cause side effects.
Birth control hormones hurt fish (suggesting the need for greater access to reliable nonhormonal methods like vasectomies, Essure or copper IUDs, though due to side effects they may not be for everyone). A new doctoral thesis from Lund University in Sweden shows that hormones found in birth control pills alter the genes in fish, which can cause changes in their behavior. The thesis also shows that nurse midwives, who are the main prescribers in Sweden, lack information about the…
Intrauterine devices, or IUDs, are well-known contraceptives, copper IUDs being one of the more popular types. IUDs are inserted into the uterus by a practicing qualified physician, and takes up to five minutes. IUDs are a very effective form of … Read More