What Causes Blisters To Form In The Bruised Area Of Knee?

Posted on Wed, 18 Nov 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 18 Nov 2015 Answered on

Sat, 5 Dec 2015 Last reviewed on

Question : What's the explanation for blisters filled with blood tinged serum that formed on the surface of a bad bruise I sustained on my knee last week. They've self-drained and are now almost resolved.

Answered by Dr. T Shobha Deepak (4 hours later)

Brief Answer:
Its usually due to liquefaction of clotted blood

Detailed Answer:
Hi
Welcome to Healthcare-Magic
Greetings of the day

Dear Sir

Resolution of hepatoma usually causes liquefaction of clotted blood which may sometimes lead to blood tinged serum and discharge. As the lesion is healed , there seems to be no cause for concern.

Do get back to me if you need any further assistance, will be glad to assist you.

Take Care

Best Regards
Dr Shobha Deepak

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar