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This is the disgusting moment a doctor removes a man's cyst by squeezing out a massive stream of pus and the using tweezers to pull out the fleshy sack.

The shocked doctor said: "Oh gosh, its the closest you will have to having a baby" as she removes the bee-sized "alien".

The medical video shows the doctor using a punch - or cookie cutter - to dip into the cyst leaving a dollop of pus.

Dr Sandra Lee - aka Dr Pimple Popper - than squeezes and jets of the yellow gunk squirt out.

She squeezes until watery blood runs down the man's shoulder.

And this is where it gets really disgusting.

After numbing the area with a syringe she goes into the core of the cyst with tweezers and slowly yanks out the fleshy sack.

Read more:Man has huge 'horn-like' cyst cut out of his head - and what is hidden beneath is truly gruesome

(Image: Youtube / Dr Sandra Lee) (Image: Youtube / Dr Sandra Lee)

She says to the man: "It is a sackage, its a very pretty sack actually. Don't look if it's going to gross you out. Don't look.

"Oh my gosh, it's the closest you will ever have to having a baby.

"It is an alien, like a bee, in fact it has a little hole inside it, like its own little entity.

"It's cute, that was a cute one."

(Image: Youtube / Dr Sandra Lee)

Dr Lee is a dermatologist at the Skin Physicians & Surgeons practice in Upland, California, and often posts footage of gory spot-draining procedures for her fans to watch.

She told Mirror Online: ""With that patient, I used a biopsy punch tool, which is what we dermatologists use most commonly to take a skin biopsy for a rash or a suspicious growth, etc.

Read more:Man left in agony after venomous false widow spider bite turned his whole neck black

"Sometimes I use this tool to make the initial "hole" to squeeze out the cyst contents from.

"Then, I can keep the scar line as small as possible. It's just an alternative to using a scalpel, knife or blade.

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"It's a pilar cyst and inside this cyst is macerated keratin - essentially wet, squashed down skin cells."

She went on to explain that these are benign growths and quite common but people often get them removed.

Dr Lee posts videos to her fans on YouTube and her Instagram account.

This video entitled 'Removal of a cyst on the anterior shoulder' has been viewed more than 625,000 times.