Changes in the skin can sometimes offer important clues about underlying health conditions, even though most serious diseases are diagnosed through tests and imaging. Skin signals are not usually enough for a diagnosis, but they can indicate the need for further medical evaluation. Some skin changes can be linked to specific health problems.
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For example, jaundice causes yellowing of the skin and eyes, often signaling liver dysfunction, such as hepatitis or cirrhosis. Another example is skin rashes that appear in autoimmune diseases like lupus or psoriasis, which can manifest with distinctive patterns.
Conditions like diabetes can also affect the skin, such as the appearance of dark, velvety patches known as acanthosis nigricans, often seen in skin folds. Thyroid disorders like hypothyroidism can cause dry, thinning skin, while scleroderma leads to skin thickening and tightening, which may also affect internal organs.
Additionally, skin cancer often presents with new or changing moles, making regular skin checks essential for early detection. Infectious diseases, such as Lyme disease, can also cause skin symptoms like erythema migrans, a bullseye-shaped rash.
While skin changes can be important indicators, they are just one piece of the puzzle. It’s always important to consult a healthcare professional if you notice unusual skin symptoms, as they will consider other factors and conduct further tests to provide a proper diagnosis.
