Skin Sensitivity: Causes of Red Marks and Bruising - Internal Medicine

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Hello doctor, I have noticed that if I accidentally scratch my skin, a red mark appears that usually disappears within 5 to 10 minutes.
Additionally, skin indentations are more pronounced now compared to before, and they take longer to fade.
This was not the case in the past.
What could be causing this?

A Zhe, 30~39 year old female. Ask Date: 2013/03/14

Dr. Gao Jiankai reply Internal Medicine


Hello, A-Zhe.
The reaction on your skin may be urticaria, also known as dermographism, which occurs when you scratch the skin with your fingernail, and after a few minutes, a raised line appears.
Dermographism is a type of hives, which is an allergic skin reaction that is more likely to occur in individuals with an allergic predisposition.
We will arrange tests in this direction.
However, if the raised areas are not accompanied by significant symptoms, you may just want to observe for now.
If you experience additional itching or allergic symptoms, it would be advisable to see a physician.
The Allergy, Immunology, and Rheumatology Department at Changhua Hospital cares about your well-being.

Reply Date: 2013/03/14

More Info


Understanding skin sensitivity, particularly the causes of red marks and bruising, can be quite complex, as it involves various physiological and environmental factors. Based on your description, it seems that you are experiencing a heightened sensitivity of your skin, which manifests as red marks that appear quickly after minor trauma or pressure and fade away within a short period. This condition can be attributed to several potential causes, which I will elaborate on below.


Possible Causes of Increased Skin Sensitivity
1. Skin Barrier Dysfunction: The skin acts as a protective barrier against environmental aggressors. If this barrier is compromised due to factors like dryness, irritation, or inflammatory skin conditions, it can lead to increased sensitivity. Conditions such as eczema or dermatitis can cause the skin to become more reactive to stimuli, resulting in redness and irritation.

2. Allergic Reactions: Allergies to certain substances, including skincare products, fabrics, or environmental allergens, can cause the skin to react more intensely. This can lead to symptoms such as redness, itching, and swelling, particularly after contact with the allergen.

3. Vascular Changes: The skin's blood vessels can become more reactive due to various factors, including hormonal changes, stress, or certain medications. When the blood vessels dilate more easily, even minor pressure or trauma can cause redness and bruising.

4. Aging: As we age, our skin undergoes various changes, including a decrease in collagen and elastin production, which can lead to thinner skin. Thinner skin is more susceptible to bruising and may show red marks more easily after minor injuries.

5. Medical Conditions: Certain medical conditions, such as autoimmune disorders or blood clotting disorders, can lead to increased bruising and sensitivity. If you notice other symptoms or if the sensitivity worsens, it may be worth consulting a healthcare professional for further evaluation.


Recommendations for Management
1. Gentle Skincare: Use gentle, fragrance-free cleansers and moisturizers to avoid further irritation. Look for products that contain soothing ingredients like aloe vera or chamomile.

2. Sun Protection: Protect your skin from sun exposure, as UV rays can exacerbate sensitivity. Use a broad-spectrum sunscreen with at least SPF 30 daily.

3. Avoid Irritants: Identify and avoid any known irritants or allergens that may be contributing to your skin sensitivity. This includes certain fabrics, skincare ingredients, or environmental factors.

4. Consult a Dermatologist: If your symptoms persist or worsen, it is advisable to consult a dermatologist. They can perform a thorough examination and may recommend patch testing to identify potential allergens or other diagnostic tests to rule out underlying conditions.

5. Healthy Lifestyle: Maintain a healthy diet rich in vitamins and minerals that support skin health, such as vitamin C, vitamin E, and omega-3 fatty acids. Staying hydrated and managing stress can also contribute to overall skin health.


Conclusion
In summary, the increased sensitivity of your skin, leading to red marks and bruising, can be attributed to a variety of factors, including skin barrier dysfunction, allergic reactions, vascular changes, aging, and potential medical conditions. It is essential to adopt a gentle skincare routine, protect your skin from irritants, and consult a healthcare professional if necessary. Understanding the underlying causes of your skin sensitivity will help you manage your symptoms effectively and maintain healthier skin.

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