There is usually no obvious reason for the ducts to become blocked, but some people do seem more prone to forming sebaceous cysts than others. It is also a condition that can run in families.

I had one removed from my head when I was about eight-years-old and didn't have another until two years ago. Now I have three that have come up on my head beneath my hair.

A sebaceous cyst—also known as a steatocystoma—is a fluid-filled bump under your skin that develops when the sebaceous (oil) glands in your hair follicles become blocked.

Serena was diagnosed with a branchial cyst. “Back in May, I found a lump showing on my neck,” she shared in the caption of an October 15 TikTok that showed her in a hospital bed.

Serena was diagnosed with a branchial cyst. “Back in May, I found a lump showing on my neck,” she shared in the caption of an October 15 TikTok that showed her in a hospital bed.

WEDNESDAY, Oct. 16, 2024 (HealthDay News) -- Retired tennis legend Serena Williams has had a cyst on her neck "the size of a grapefruit" surgically removed and is in recovery, she announced ...

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