Red and Bruise-Like Skin Spots: Causes and Concerns - Dermatology

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The hand appears to be bruised?


Hello doctor, my mother has a spot on her hand that is about the size of a 50 NT dollar coin.
It usually appears red, but after bathing, it looks like a bruise.
It has been there for two months.
What could this be?

Ms. Tseng, 20~29 year old female. Ask Date: 2016/02/05

Dr. Wu Yuxin reply Dermatology


Without actually seeing the lesion, it cannot be confirmed.
If it is very concerning, it is recommended to have it evaluated by a dermatologist for proper assessment.

Reply Date: 2016/02/05

More Info


When it comes to understanding red and bruise-like skin spots, it is essential to consider a variety of potential causes and underlying conditions. The description of a red spot on your mother's hand that resembles a bruise after bathing raises several possibilities that warrant further investigation.

Firstly, one common cause of red or bruise-like spots on the skin is dermatitis, which can manifest as inflammation due to various irritants or allergens. Contact dermatitis, for instance, occurs when the skin reacts to substances it comes into contact with, such as soaps, lotions, or even certain fabrics. If your mother has recently changed her bathing products or has been exposed to new materials, this could be a contributing factor.

Another possibility is vascular lesions, such as cherry angiomas or petechiae. Cherry angiomas are benign growths of small blood vessels that can appear as red spots on the skin. They are generally harmless and often increase in number with age. On the other hand, petechiae are tiny red or purple spots that occur due to bleeding under the skin, often resulting from minor trauma, certain medications, or underlying health issues. If the spot appears to be changing in size or color, or if there are multiple spots, it may be worth consulting a healthcare professional.

Bruising itself can occur for various reasons, including age-related skin changes that make blood vessels more fragile, leading to easier bruising. If your mother is on any medications, particularly blood thinners or anti-inflammatory drugs, these could also contribute to increased bruising.
In some cases, conditions such as eczema or psoriasis can cause red patches that may resemble bruises. These conditions are often accompanied by other symptoms, such as itching or scaling. If your mother has a history of skin conditions, this could be a relevant factor.

Given that the spot has persisted for two months, it is advisable to seek a professional evaluation. A dermatologist can perform a thorough examination and may recommend a biopsy or other diagnostic tests to determine the exact nature of the spot. This is particularly important if there are any changes in the spot's appearance, such as increased size, color changes, or if it becomes painful.

In the meantime, it would be wise to monitor the spot for any changes and to avoid any potential irritants, such as harsh soaps or lotions. Keeping the area clean and moisturized may help alleviate any irritation. If your mother experiences any additional symptoms, such as fever, swelling, or pain, these should be addressed promptly with a healthcare provider.

In summary, while there are several potential causes for the red, bruise-like spot on your mother's hand, a thorough evaluation by a healthcare professional is essential for an accurate diagnosis and appropriate treatment. Skin changes can sometimes indicate underlying health issues, so it is always best to err on the side of caution and seek medical advice when in doubt.

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