Skip to main content
keratosis

keratosis

1 9.9
A rough, thick patch on the skin where the outer layer grows too much
  • noun
  • /ˌkɛrəˈtoʊsɪs/
  • Specialized
translation icon : queratosis
  • Bumps on the back of the arms from keratosis pilaris are not a medical concern and are often seen in teenagers.
  • a condition called keratosis
  • a skin condition is keratosis

Examples

  • Combined with a raw vegan diet, oil pulling, and dry skin brushing, I know I could improve my skin texture—I’ve been battling keratosis pilaris since college.

    Blog text (12)
  • I have mentioned before I have Keratosis Polaris on my arms, AKA KP, and it just means that I have like these little red bumps I have.

  • Now, I do have keratosis pilaris, but this did not look the same.

    Blog text (12)
  • I have had keratosis pilaris all my life.

    Blog text (12)
  • The prevalence of hyperpigmentation, keratosis, and skin cancer was determined based on clinical exams.

    Academic text (2008)
  • This difference is probably due to the ethnic differences, as BCC is more commonly seen in patients with solar keratosis and freckles.

    Academic text (2007)
  • Until 1980, external auditory canal cholesteatoma and keratosis obturans were considered to be different presentations of the same disease.

    Academic text (2009)
  • Up to 40 percent of adults suffer from keratosis pilaris, which causes tiny bumps on the upper outer arms and thighs.

  • The rough red bumps on the backs of your arms are the hallmark of keratosis pilaris, a common and harmless skin condition.

Synonyms

hyperkeratosis
vskeratosis
  • Specialized
1 9.3

A thick hard area on the outer skin or inside the mouth caused by extra skin layers

is about outer skin overgrowth without stressing membrane involvement
keratoderma
vskeratosis
  • Specialized
9.9

A skin condition that makes the palms and soles thick and hard

is the broader term for any outer skin thickening or overgrowth
keratodermia
vskeratosis
  • Specialized
9.9

A skin condition where patches become thick and hard like a horn

is the general condition of outer skin thickening, not only local spots

Compounds

actinic keratosis
  • Specialized
1 7.7

A rough, scaly patch on the skin caused by long sun exposure that can become skin cancer

keratosis pilaris
  • Specialized
1 9.3

A common skin problem that causes small hard bumps on the upper arms and thighs

9.9

A skin disease that causes scaly rashes on the palms and soles

9.9

A rare inherited skin condition that causes dark, crusted patches sometimes with pus

keratosis nigricans
  • Specialized
9.9

A skin condition that causes dark, rough patches in body folds

seborrheic keratosis
  • Specialized
9.4

A harmless wart-like skin growth with a greasy surface that may itch

How Severe

keratoderma
  • Specialized
9.9
keratosis
  • Specialized
1 9.9

Surface Forms

keratosis singular
keratoses plural

Morphology

keratosis = keratin (opaque) = kerat + osis

The combining form 'kerat-' is a Greek medical element (not a standalone English word) and '-osis' is a specialist medical suffix, so learners unfamiliar with medical morphology will not be able to derive the precise meaning.

Etymology

Keratosis comes from the Greek root kerato- meaning 'horn' and the ending -osis meaning 'a condition'. It describes skin that has become hard or thick like a horn, and a helpful way to remember it is the related word keratin, the material in hair and nails that also makes things hard.