Generally, yes. The reason the sac is removed is to prevent the cyst from regrowing there. Otherwise it’s like a pimple that you keep popping and it never goes away.
I was watching the doctor remove a chickpea-sized cyst from my shoulder and when he started removing the sac, it looked like he was pulling the flesh out of me. Not fun to watch.
I have had a few sebaceous cysts removed. One of them 3 times.
Just squeezing the sebum and/or puss out is not enough as the sack will continue to produce sebum (dead skin and oil).
I had a doctor cut one of my cysts out, sack and all, but he obviously mist a very small amount of cyst tissue, so the sack grew again to fill the void left behind after surgery. But when it grew back a few years later it got infected, filled with puss, and grew about 30x bigger than the original cyst. It looked like a litteral golf ball under my skin. A of anti biotics and 2 more attempts to cut it out, i believe it is now gone for good.
Dermatologist here.
Generally yes, but about 5-10% of them grow back anyways. Either from a small bit of cyst wall that didn’t get cut out (can be very difficult to ensure 100% is removed) or perhaps from the surgical trauma itself.
Cysts can develop by themselves in scar tissue and the surgery itself causes scar tissue.
Unfortunately, as with most things in medicine, you can never really say never.
sac is technically a empty space and if you leave an empty space and just remove the fluid/pus collected inside, it will collect fluid/pus again. this is not in all case, but in some they do this thing called Marsupialization, where they just remove the roof of the cyst and let it drain naturally. if it doesn’t heal/ there’s collection again, they’ll just remove the cyst as a whole.
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