Well, maybe a few: is this how women got that fishy smell “down there?”
Plus, do we really want to see the end result of this?
The pioneering operation meant the 17-year-old could have a normal sex life but is not believed to have made her fertile.
First visiting doctors because she had never had a period, the unidentified teenager was then diagnosed with a genetic disorder which had left her without a vaginal canal.
The fish skin operation was used for the first time by the same Brazilian medics in 2018 on a 23-year-old, and the first trans patient had it done earlier this year at 35.
Doctors at the university hospital of the Federal University of Ceará in the north-east of Brazil performed the operation and filmed it for a scientific journal.
The graphic footage shows the surgeons making an incision where the vagina should be and inserting the fish skin wrapped around a plastic rod.
Led by Professor Leonardo Bezerra, a pioneer of the procedure, the team operated because their patient was diagnosed with Mayer-Rokitansky-Kuster-Hauser syndrome.
This is a genetic disorder affecting about one in 4,500 girls (0.045 per cent of births) which leaves them without a vagina or uterus.
They usually have a normal vulva – the outside of the genitals – but are missing parts of their reproductive system. This patient had normal ovaries but no womb.
Professor Bezerra and the team wrote in a journal: ‘The procedure offered this patient an anatomic and functional vagina by means of a simple, safe, easy, effective, quick, and minimally invasive procedure.’
They used the skin of a tilapia fish, which is one of the most popular seafoods in the US and is cheap to buy.
After the fish was caught it was skinned and the skin descaled and sterilised using chemicals and radiation in a laboratory.
During the operation the scientists cut a 3cm (1inch) hole in the woman’s groin, wrapped the fish skin around an acrylic mould and inserted it into the wound.
Cells on the fish skin – which is inserted with the internal side against the flesh – act like human stem cells and encourage the wound to heal similarly to normal vaginal tissue.
The mould was kept in by stitches for nine days while the skin was partly absorbed by the body, then removed and replaced with a larger one for a month.
This piece of plastic forces the vagina to hold its shape and stops it collapsing or healing wrongly.
The woman was told to keep it in every night until she was able to have sex normally.
After six months her newly formed vaginal canal was between 8cm and 9cm deep (3-3.5inches) and heralded a success by the surgeons.
This is about the same size as a normal vagina – the organs are able to stretch and expand when a woman is aroused.
The teenager is still believed to be unable to carry children of her own because the procedure is only able to restore the vagina, not the womb.
Professor Bezarra and his colleagues published their report in the journal Fertility and Sterility.