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
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.
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