Some cysts pop quickly and smoothly but when you are talking about a 20 year old Sebaceous cyst, it’s never quite that simple and usually exceedingly gross.  This video is proof of that and if you have a weak stomach, you should skip the video, especially when you are eating.

 Sebaceous cysts are common noncancerous cysts of the skin. Cysts are abnormalities in the body that may contain liquid or semiliquid material.

Sebaceous cysts are mostly found on the face, neck, or torso. They grow slowly and are not life-threatening, but they may become uncomfortable if they go unchecked.

Doctors usually diagnose a cyst with only a physical examination and medical history. In some cases, a cyst will be examined more thoroughly for signs of cancer.

Sebaceous cysts form out of your sebaceous gland. The sebaceous gland produces the oil called sebum that coats your hair and skin. Cysts can develop if the gland or its duct, the passage where oil is able to leave, becomes damaged or blocked. This usually occurs due to a trauma to the area.

The trauma may be a scratch, a surgical wound, or a skin condition, such as acne. Sebaceous cysts grow slowly, so the trauma may have occurred months or weeks before you notice the cyst.

Other causes of a sebaceous cyst may include:

a misshapen or deformed duct
damage to the cells during a surgery
genetic conditions, such as Gardner’s syndrome or basal cell nevus syndrome

H/T pimplepoppingvideos.net

and Health Line