Hysteroscopy - first one showed a polyp, second one didn't. What's going on and where has it gone?

Hi, recently had ultra sound in uterus, was told I had thickening of womb 10 mm. Was then referred for hysteroscopy, womb was fine but had anterior polyp 1.5 cm. Doctor was trying to remove this but I was in a lot of pain. Then referred me for 2nd hysteroscopy under general anaesthetic to remove polyp. Results were, he could not see any polyp but did biopsy and said my endometrial cavity was deeper than expected. What is going on, have had no symptoms of any kind, the womb issues were found incidentally, I was sent for ultrasound for cystocele issues. The first doctor showed me the image of the polyp, where has it gone?

Thank you for reading my rant!

  • Hello and thanks for your enquiry,

    I can appreciate your concern. I will try to outline a few factors involved that may explain things.

    It is not uncommon for a further hysteroscopy to show different findings. When an endometrial cavity is "deeper than expected" this means the physical size from the cervix to the very top of the womb. It is an anatomical variation and is not a symptom of cancer. Wombs come in all shapes and sizes, and they can stretch or enlarge slightly due to previous pregnancies, completely benign muscle growths (like hidden fibroids), or individual natural anatomy. Womb polyps like most polyps can spontaneously detach from its stalk and pass out of the body, possibly after the last attempted removal.

    An ultrasound or an early look during a painful, difficult first procedure can sometimes identify a thick, localized clump of the uterine lining as a polyp. Because the womb lining changes, that thick patch may have thinned out or altered by the time you had the second procedure.

    If the polyp was fairly small, tucked into a corner (cornua) near the fallopian tubes, or if the fluid used to expand your uterus during the second procedure pushed it flat, it could have been missed visually.

    The important take away from this, is that a biopsy of the womb lining was taken. Because your initial ultrasound showed a general thickening of the womb lining (10 mm), the biopsy is actually the most relevant test you could have. A biopsy does not rely solely on what the doctor can see through the camera. Instead, it takes a small sample of the cells across the lining to look at them under a microscope. The biopsy will check for a condition called endometrial hyperplasia (which simply means a benign overgrowth of the lining cells) and rule out any abnormal or precancerous cells. Because you have had no symptoms, such as unexpected or irregular bleeding, this is a very positive sign, as most serious endometrial issues present with signs like postmenopausal or abnormal bleeding. This helps the doctor determine whether you have endometrial hyperplasia.

    This condition is classed as non atypical (low risk of becoming cancerous) or atypical (higher risk of developing into or coexisting with womb cancer).

    I hope that this reply helps, and that you get to fnd out more soon,

    Best wishes,

    Vanda

  • Thank you for that information, it helps me understand a little bit better of what is going on. The doctor also gave me antibiotics and codeine phosphate, which I was surprised at, I believe they do not normally give them as a preventative, is it possible I had an infection from 1st hysteroscopy?

    Thanks Michelle