Keratosis Pilaris – When Hair Follicles Become Plugged with Keratin
Keratosis pilaris is one of the most common follicular skin conditions, yet it is often misunderstood. Many people know it as “chicken skin” because it…
Tag: Sebaceous glands
Hirsutism in the Absence of Hyperandrogenism
Hirsutism is traditionally viewed as a clinical sign of androgen hormone excess in the body. Excessive terminal hair growth in androgen-dependent areas of the female…
Changes in Hair Lipids in Hair Loss Diseases
Hair follicle biology is increasingly understood as a system in which lipid metabolism is not peripheral, but central to structural integrity, immune regulation, and follicular…
Demodex Folliculorum and Its Alleged Association with Hair Loss
Demodex folliculorum is a microscopic mite that inhabits the human pilosebaceous unit and has fascinated, unsettled, and occasionally misled clinicians and patients for more than…
Measuring Scalp Sebum: Principles, Quantification Techniques and Dermatological Relevance
Sebaceous glands are holocrine units that synthesise and excrete a complex lipid mixture – sebum – onto the surface of skin and hair. On the…
What are these pimples I can scratch out of my head that are sometimes attached to the base of hair fibers?
The pimple is probably hardened sebum. It is white or light yellow in color and if pressed hard can be squashed and molded. The sebum…