Question

IUDs work as contraceptive device as they

• A. Act as a foreign body in uterus and induce its inflammation.WBC's produced will act aginst the sperm
• B. Create a hostile environment for sperms
• C. Induce changes in endometrium which makes it unsuitable for implantation
• D. All the above

Answer 1

The correct option is D

All the above

The primary mechanism of an IUD, is based on the fact that it is a foreign object in the uterus. This stimulates a foreign body reaction in the uterus, causing an inflammatory reaction, increasing release of WBCs and prostaglandins.These attack incoming sperm and create a hostile environment. They also induce changes in the endometrium, which make it unsuitable for implantation.