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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]
A variety of human hair colors; from top left, clockwise: black, brown, blonde, white, red. Human hair color is the pigmentation of human hair follicles and shafts due to two types of melanin: eumelanin and pheomelanin. Generally, the more melanin present, the darker the hair. Its tone depends on the ratio of black or brown eumelanin to yellow ...
Onychomadesis is a periodic idiopathic shedding of the nails beginning at the proximal end, possibly caused by the temporary arrest of the function of the nail matrix. [ 1]: 784 [ 2]: 660 One cause in children is hand, foot, and mouth disease. [ 3] This generally resolves without complication.
Leukonychia. Other names. White nails or Milk spots[ 1] Specialty. Dermatology. Leukonychia (or leuconychia) is a medical term for white discoloration appearing on nails. [ 2] It is derived from the Greek words leuko 'white' and onyx 'nail'. The most common cause is injury to the base of the nail (the matrix) where the nail is formed.
Beau's lines are horizontal, going across the nailline, and should not be confused with vertical ridges going from the bottom ( cuticle) of the nail out to the fingertip. These vertical lines are usually a natural consequence of aging and are harmless. [ 3][ 4] Beau's lines should also be distinguished from Muehrcke's lines of the fingernails.
Terry's nails is a physical condition in which a person's fingernails or toenails [ 1]: 659 appear white with a characteristic "ground glass" appearance without any lunula. [ 2] The condition is thought to be due to a decrease in vascularity and an increase in connective tissue within the nail bed; [ 3] the darker shade of the distal portion of ...
Onychorrhexis. Onychorrhexis (from the Greek words ὄνυχο- ónycho-, "nail" and ῥῆξις rhexis, "bursting"), is a brittleness with breakage of finger or toenails that may result from hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy. [ 1]: 786 It can also be seen in melanoma that involves the nail and ...
Dermatology. Complications. boil. 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.