The “shaft to thread” connections of different IUD models.

The “shaft to thread” connections of different IUD models.The “shaft to thread” connections of different IUD models.

A: Multiload

B: NovaT/LNG-IUS

C: Flexi-T+ 300 und 380

D: TCu 380

Only the Flexi-T has one thread without knot, integrated into the shaft.IUD threads are known as routes for the ascension of germs (bacteriae and chlamydiae).IUD threads also can disturb the male sexual partner and cause male dyspareunie.