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With 3 procedures done on the uterine cervix - the pre- pregnancy
cerclage was the ideal treatment to overcome the problem of incompetent cervix
These procedures can lead to narrowing or stenosis of the cervical canal. This can lead to a technical difficulty like passing a cannula
through the cervix.
The HSG - as you mentioned can be tried by your consultant under general anesthesia
to overcome this problem and to see if the fallopian tubes of the uterus are open.
hope to have answered your query
Dr Nandita Thakkar