Table 1. Patient and clinical characteristics in group RIF ( recurrent implantation failure)
Characteristics RIF group
Number of cycles 30
Number of previous cycles IVF failed 3.2±1.1(2-6)
Patient age (year) 36±4.08(30-46)
Length of sterility (year) 9±7(4-20)
Endometrial thickness (mm) 8.77±2.12(6-13)
Thinned endometrium < 7mm (mm) 6/30 (20%)
Positive endometrial bacteriology 12/30(40%)
Mycoplasma/Ureaplasma
5/12(41.6%)
Clamydias
3/12(25%)
Bacteria G(-)* and G(+)†
4/12(33.3%)
Endometrial biopsy  
Absence of chronic endometritis (CE)
16/30 (53.3%)
Chronic endometritis (CE) ‡
14/30 (46.7%)
Micropolyposis 7/30 (23.3%)
in CE
6/14 (42.8%)
in absence CE
1/16 (6.2%)
*(2 Enterococcus Faecalis. 1 Eikinella cannis) †(1 beta hemolytic streptococcus)
‡13 chronic endometritis. 1 diffuse Endometritis