It sounds like you’re referring to the oddly satisfying (and sometimes shocking) videos of cyst popping, particularly back cysts, which have gained massive popularity online.
Hereβs a brief paragraph that captures it:
Watching a back cyst being popped can be oddly satisfying and stomach-turning at the same time. These videos, often shared by dermatologists or skin care enthusiasts, show the removal of built-up keratin or pus from under the skin, usually from a sebaceous cyst. As pressure is applied, the contents often erupt in a dramatic fashionβsometimes slowly oozing, other times explosively bursting. Viewers say the process provides a strange sense of relief, both for the person treated and for the audience, who find the clean-up and closure of the wound deeply satisfying. Despite the fascination, it’s always recommended that such procedures be done by professionals to avoid infection or scarring.