A Twitter drug user posted a challenge for men on Saturday : try and name what this twist is . It appears that a passel of citizenry do n’t know – and to find out why , you involve to attend back to the later sixties .
Alongside the mostly in - jest ( hopefully ) answers such as " a teeny lilliputian crossbow " , " crossbow for mouse " , " a tiny pogo joint for computer mouse " , and " the samara on a cured beef cattle can " , there does seem to be some literal discombobulation about what the machine is , and not just from men .
For those who are truly confused , there were hint at hand .
The answer is , it ’s an intrauterine equipment ( IUD ) . Also live as " the coil " , these are small liothyronine - shaped devices made of plastic and fuzz . They are stick in by medical professionals through the neck and into the womb ( a task whichmany find uncomfortable ) . They lento release copper , or alternativelythe endocrine levonorgestrelin the case of anintrauterine system ( IUS ) .
The copper alter the cervical mucus , making it muchmore difficult for spermatozoon to strain the egg , and for fertilized eggs to implant themselves . Levonorgestrel , meanwhile , thickens the mucus in the uterine cervix andthins the lining of the uterus , having the same consequence .
The devices are 99 pct effectual at preventing gestation – though they do not have the protective upshot of condoms against sexually conduct infections . depend on the brand and character , theycanlastfor 3 - 10 years before needing to be removed .
Despite this – and being themost popular form of contraceptive method in China – they have quite alow intake in the USand much of Europe in equivalence to the prophylactic pill . One of the reasons for their comparative unpopularity – along with them causing heavier and more atrocious period in some people – can be traced to the Dalkon shield disaster in the late 1960s .
The Dalkon shield was wider than current fashion model , in decree to balk the occasional expulsion of the equipment by the body . The gadget was a disaster , withusers describe severe pelvic infections and perforations on a big scale .
Before sales were suspended in 1974 , six women expire as a result of the shell , and by 1989 the fellowship had to put away $ 2.5 billion to make up for call by people who had been caused pain sensation and health problem by the gadget . For a time , it effectively killed the report of IUDs , despite other models being safe and incredibly effective . Meanwhile , pharmaceutic companiesmarketed the more profitable prophylactic pills heavily , leading to a United States where intrauterine gadget are infrequently used , and rarely pick up of by piece .
In conclusion : IUDs are safe , effective , and not to be used as pogo sticks for rodents .
