Spontaneous upward movement of lowly placed T-shaped IUDs

To assess the possible progression of intrauterine devices (IUDs) to a lower or upper position in women.

Thirty-two lowly placed T-shaped IUDs in women with 0-3 children were examined with transvaginal ultrasonography after 2 months of insertion in order to assess the possible progression of the IUDs. Also, the IUDs inserted in women with 0-3, 0-1 and 2-3 children were compared to determine whether this progression was different depending on parity.

Intrauterine devices (97%, 100% and 93.7%) in the group of women with 0-3, 0-1 and 2-3 children, respectively, moved upward. The mean decrease in IUD-fundus distance was 6.8, 7.4 and 4.9 mm, respectively.

Lowly inserted T-shaped IUDs tend to move upward after insertion. Therefore, initial concern about low placement of a T-shaped IUD is not justified as most of them spontaneously readjust their position.