Hey Doc,

What exactly are those white ‘bulb’ sort of things that are at the tip of hairs that fall out? Most of my hair that fall out have that white bulb sort of thing. What are those?

Also, somewhere I read by a noted hair doctor that a white bulb means that the hair fell out in it’s growing phase, whereas a darker bulb meant that the hair was already grown or such. Is that true?

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The white bulbs are likely sebum, a remnant of your oil gland that happened to come out with your hair. The darker bulb just came out without the sebum.

Tags: sebum, hairloss, hair loss, follicle