Dry Skin

Xerosis Cutis

Mild severity70% reported by patientsICD-10: L85.3

Summary

Tight, flaky, or rough skin caused by loss of moisture from the outermost skin layer — often worsened by cold weather, harsh soaps, and aging.

What is it?

Xerosis cutis (dry skin) is one of the most prevalent dermatologic conditions, affecting up to 50% of older adults. The stratum corneum — the outermost skin layer — normally retains moisture through natural moisturizing factors and lipid barriers. When these are disrupted (by age, environment, over-washing, or disease), transepidermal water loss increases, causing dryness, tightness, scaling, and itch. Most dry skin is benign and environmental. However, severe or generalized dry skin may reflect hypothyroidism, atopic dermatitis, psoriasis, or kidney disease. Chronic dry skin significantly impairs quality of life and increases infection risk from skin barrier breakdown.

Common causes

Environmental / Lifestyle

  • Cold, dry weather or low humidity
  • Excessive bathing with hot water
  • Harsh soaps and detergents
  • Central heating or air conditioning

Age-Related

  • Skin lipid production decreases with age
  • Reduced sebum production
  • Slower skin cell turnover

Medical Conditions

  • Atopic dermatitis (eczema)
  • Psoriasis
  • Hypothyroidism
  • Chronic kidney disease
  • Diabetes
  • Ichthyosis

Medications

  • Retinoids (isotretinoin, tretinoin)
  • Diuretics
  • Statins
  • Certain cancer therapies

When to see a doctor

  • 1Dry skin with intense, persistent itching not responding to moisturizers
  • 2Skin cracking, bleeding, or showing signs of infection (redness, warmth, pus)
  • 3Widespread dry skin with fatigue, cold intolerance, and weight gain (hypothyroidism)
  • 4Dry skin in someone with chronic kidney disease — uremic pruritus
  • 5Dry skin in a child that is widespread, inflamed, or accompanied by asthma and allergies (eczema)
  • 6Ichthyosis — fish-scale skin pattern from birth or childhood

What you can do

  • Moisturize immediately after bathing (within 3 minutes) while skin is still slightly damp — seals in moisture
  • Choose thick creams or ointments over thin lotions — they are more effective barriers
  • Bathe in lukewarm (not hot) water and limit to 5–10 minutes
  • Use fragrance-free, gentle cleansers — avoid antibacterial soaps that strip skin oils
  • Use a humidifier in your bedroom during winter months
  • Wear gloves when washing dishes or doing housework with chemical products

Frequently asked questions

This page is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified health provider with questions about your symptoms or medical conditions.

Have a question about dry skin?

Ask MedMind AI about causes, medications, or next steps.

Ask MedMind AI