the Differences Between Common Bruises and Leukemia Symptoms - Oncology

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About bruises?


Hello, doctor.
I would like to ask if there is a significant difference between a regular bruise and a bruise caused by leukemia.
I just noticed a bruise about 1-2 centimeters on both my hand and foot, and there are no other bruises.
I'm not sure if it's from bumping into something while moving boxes on Wednesday.
Under what circumstances should I be concerned? I do not have fatigue or fever.
Last September, I had a blood test for urticaria, and my platelet count was normal at that time.
Thank you.

Lin, 30~39 year old female. Ask Date: 2024/03/31

Dr. Chen Yunfang reply Oncology


Hello: 1.
The appearance of both is the same, with no differences.
2.
There are no specific concerns to pay attention to; if discomfort occurs, seek medical attention.
Thank you.

Reply Date: 2024/03/31

More Info


When it comes to distinguishing between common bruises and those that may be indicative of leukemia, there are several important factors to consider. Bruises, or contusions, are typically caused by trauma to the skin and underlying tissues, resulting in bleeding under the skin. They can appear in various colors, ranging from red to purple to yellow, as they heal. Common causes of bruising include falls, bumps, or any physical activity that may lead to impact.
In contrast, bruising associated with leukemia or other blood disorders often presents differently. Individuals with leukemia may experience easy or excessive bruising due to a low platelet count (thrombocytopenia), which can result from the disease itself or its treatment. In leukemia, bruises may appear without any obvious cause, and they can be more extensive or occur in unusual locations. Additionally, these bruises may not follow the typical healing pattern seen in regular bruises.
Here are some key differences and symptoms to be aware of:
1. Cause of Bruising:
- Common Bruises: Usually result from a known injury or trauma.

- Leukemia Bruises: May occur spontaneously without any identifiable cause.

2. Appearance:
- Common Bruises: Typically localized and follow a predictable color change as they heal.

- Leukemia Bruises: Can be larger, more diffuse, and may not change color in the same way.

3. Associated Symptoms:
- Common Bruises: Generally do not come with other symptoms unless there is significant trauma.

- Leukemia Bruises: Often accompanied by other symptoms such as fatigue, frequent infections, unexplained weight loss, night sweats, or fever.
4. Location:
- Common Bruises: Usually found on areas of the body that have experienced trauma.

- Leukemia Bruises: Can appear on areas that have not been injured, such as the torso or face.

Given your situation, where you have noticed small bruises on your arms and legs, it is essential to consider the context. If you recall bumping into something while moving items, it is likely that these bruises are a result of that activity. However, if you start to notice more bruises appearing without any trauma, or if you experience any of the additional symptoms mentioned above, it would be prudent to consult a healthcare professional.

Since you mentioned that you had a blood test last September that showed normal platelet levels, this is reassuring. However, if you have any concerns or if your symptoms change, it is always best to follow up with your doctor. They may recommend further testing, such as a complete blood count (CBC), to check your platelet levels and overall blood health.

In summary, while common bruises and those associated with leukemia can sometimes appear similar, the context, accompanying symptoms, and patterns of occurrence can help differentiate between the two. If you have any doubts or if your bruising becomes more frequent or severe, seeking medical advice is always the best course of action.

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