What’s The Difference Between Dry Skin And Psoriasis?
Dry skin happens when skin cells don’t have enough lipids and oils to stay self-hydrated. Skin can become flaky, rough, and cracked. When you get really dry, the skin may stubbornly retain these characteristics, and fail to improve with just your regular moisturizer or hydrating treatments. That’s because the barrier function of the skin (its ability to keep hydration in and dryness out) has likely been compromised.
Dry skin is often caused by cold temperatures, low humidity, over-washing, overly harsh skin-care ingredients, long and hot showers or baths, and environmental factors like blustery, windy weather. Poor nutrition, not drinking enough liquids, and medical conditions like thyroid disease can also cause dry skin.
So what is psoriasis? Psoriasis, unlike dry skin, isn’t generally caused by external factors. It’s actually a chronic inflammatory disease of the immune system, and often co-exists with other conditions, including diabetes, arthritis, and depression, per the American Academy of Dermatology (AAD). If you have psoriasis, your immune system is sending faulty signals to your skin, telling it to produce more cells at an accelerated rate. According to the National Institutes of Health, psoriasis has a strong genetic link, and about one-third of patients have a first-degree relative with the condition.