Yes...I have a few thoughts,but the main one is that your GP has referred you, quite correctly, to rule out the outside chance of there being a malignant lesion.
By far the commonest cause will be a benign polyp in the cervix or less likely in the uterus.......and that is the most likely scenario.
Also bleeding with the Marina Coil is quite an accepted side effect, but your description of post coital bleeding would lead me to suspect the polyp.
Keep us informed.



