Rosie Marcel chopped a cyst out of her husband's neck after learning the technique on Holby City.
The 41-year-old actress - who has played Director of Cardiothoracic Surgery Jac Naylor in the drama for 14 years - turned to the medical knowledge she has learned on set when her hubby Ben Stacey had a growth on his neck.
She told My Weekly magazine: "I operated on my husband Ben once, that was quite unusual.
"He got a weird lump in the back of his neck - I think it was a cyst - so I cut it open for him and then glued it back together with superglue.
"I definitely wouldn't have been able to do that if I'd not been in Holby.
"I'm sure if a medical professional heard me say this they'd be appalled, but I've picked up quite a bit of medical knowledge over the years, which makes it easy for me to explain medical things to people."
He got a weird lump in the back of his neck - I think it was a cyst - so I cut it open for him and then glued it back together with superglue.
Rosie - who has played the same role in sister show Casualty - hasn't shied away from offering medical advice to her family and friends over the years and recently advised her father when he was having his gallbladder removed.
She added: "My father was ill recently and had to have his gallbladder removed and I was able to explain the procedure to him and what his recovery would be like.
"I was also able to go to the nurses on set and ask about the side effects, which was great.
"Most of it is stuff I've learnt over the years, but when I first joined they sent me out to watch some open-heart surgery, which was absolutely fascinating.
"I've definitely learnt on the job and I can walk into any operation they've written now and pretty much know what I'm doing."
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