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Pseudofolliculitis barbae. Pseudofolliculitis barbae ( PFB) is a type of irritant folliculitis that commonly affects people who have curly or coarse facial hair. [1] It occurs when hair curls back into the skin after shaving, causing inflammation, redness, and bumps. [2] [3] This can lead to ingrown hairs, scarring, and skin discoloration.
What probably comes to mind when you think of hair loss, or alopecia, is an older man with a receding hairline and a bald spot on the top of his head. But from male pattern baldness to hair loss ...
Hair diseases are illnesses that impact the persistence and regular growth of hair. Types of hair diseases include folliculitis , hirsutism , hypertrichosis , hypotrichosis ( alopecia ), Menkes kinky hair syndrome , monilethrix , and piedra .
Ingrown hair is a condition where a hair curls back or grows sideways into the skin.The condition is most prevalent among people who have coarse or curly hair. It may or may not be accompanied by an infection of the hair follicle (folliculitis) or "razor bumps" (pseudofolliculitis barbae), which vary in size.
Uncombable hair syndrome ( UHS) is a rare structural anomaly of the hair with a variable degree of effect. It is characterized by hair that is silvery, dry, frizzy, wiry, and impossible to comb. [4] It was first reported in the early 20th century. [5] It typically becomes apparent between the ages of 3 months and 12 years. [6]
Ectodermal dysplasia. A patient displaying peg-shaped teeth and sparse hair characteristic of ectodermal dysplasia. Specialty. Medical genetics. Ectodermal dysplasia ( ED) is a group of genetic syndromes all deriving from abnormalities of the ectodermal structures. [1] : 570 More than 150 different syndromes have been identified.
Monilethrix (also referred to as beaded hair) [1] is a rare autosomal dominant hair disease that results in short, fragile, broken hair that appears beaded. [2] [3] It comes from the Latin word for necklace ( monile) and the Greek word for hair ( thrix ). [4] Hair becomes brittle, and breaks off at the thinner parts between the beads.
The individual occurrence and characteristics of chest hair depend on the genetic disposition, the hormonal status and the age of the person. The genes primarily determine the amount, patterns and thickness of chest hair. Some men are very hairy, while others have no chest hair at all. All ranges and patterns of hair growth are normal.