What causes unexplained bruising on knuckles?
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What causes unexplained bruising on knuckles?

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Posted on Wed, 23 Dec 2015
Question: My husband has bruises on his knuckles and he has not hit anything. The bruises are actually in middle of his two middle fingers not on the knuckles but on the side. At first I though it was a sun burn but now I can see they are bruises.
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Answered by Dr. Rahul Kumar (2 hours later)
Brief Answer:
Allergic reaction

Detailed Answer:
Hello
Thanks for the query and photograph.
He might have developed an allergic reaction.
I would like to know whether he has any symptoms like itch or pain.
Also whether he is taking any medication for any other disease like hypertension or diabetes.
Please answer the above so I can help you better.
Let me know if you have any other doubts.
Thank you.
Above answer was peer-reviewed by : Dr. Prasad
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Follow up: Dr. Rahul Kumar (12 hours later)
No pain or itching and no medications.
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Answered by Dr. Rahul Kumar (15 hours later)
Brief Answer:
Mometasone

Detailed Answer:
Hello
Thanks for the follow up.
There is nothing to worry.
It appears like a non specific contact dermatitis.
I would suggest him to use mometasone cream daily for 15 days.
It is a mild steroid and will take care of allergy.
He will get good response.
Let me know if you have any other doubts.
Thank you
Above answer was peer-reviewed by : Dr. Prasad
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Answered by
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Dr. Rahul Kumar

Dermatologist

Practicing since :2010

Answered : 6307 Questions

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What causes unexplained bruising on knuckles?

Brief Answer: Allergic reaction Detailed Answer: Hello Thanks for the query and photograph. He might have developed an allergic reaction. I would like to know whether he has any symptoms like itch or pain. Also whether he is taking any medication for any other disease like hypertension or diabetes. Please answer the above so I can help you better. Let me know if you have any other doubts. Thank you.