Defects of the hair shaft
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Multiple hairs in one follicle. Should I be worried? : AskReddit
Multiple/Two Hairs One Follicle on Scalp, Armpit, Pubic Area+ Get Rid
They appear waxy and flat.
Sometimes hair follicles produce multiple hair strands which appear to be coming out in clusters.
If a doctor diagnoses it, they may call it an epidermoid or a pilonidal cyst.
Keep intense hair treatments to a minimum.