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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Have Pain At Back Of Knee, Leg Looks Puffy, Bruising. What Could Cause This?

hi, about 10 days ago i woke with pain at the back of my knee when i looked there was a big bruise there and my leg really hurt to walk . the last few days the pain as gone , but today its hurting again and my daughter tells me the bruise looks like it is bigger and my leg looks a bit puffy ,my leg feels tight from the knee down at the back of my leg . i have not banged my leg and didnt not have any pain or bruising before i went to bed 10 days ago. what could cause this . (ps i have just come back off a holiday the flight wouldnt cause it would it .( 8hr one then a 6 hr one)
Wed, 6 Nov 2013
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Orthopaedic Surgeon, Joint Replacement,  's  Response
Hi and welcome to HCM

Unexplained bruise without history of injury could be due to deficiency of vitamin C, vitamin B12, folic acid and vitamin K.
Many times taking medications like aspirin, ibuprofen, non steroidal anti-inflammatory drugs, and even birth control pills increases chances of sudden bruising. Topical and systemic corticosteroids cause skin thinning, making one prone to bruises. Many a time bruising can be caused due to liver ailments, kidney diseases and blood disorder.

Hope this will helps you. Take care.
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Have Pain At Back Of Knee, Leg Looks Puffy, Bruising. What Could Cause This?

Hi and welcome to HCM Unexplained bruise without history of injury could be due to deficiency of vitamin C, vitamin B12, folic acid and vitamin K. Many times taking medications like aspirin, ibuprofen, non steroidal anti-inflammatory drugs, and even birth control pills increases chances of sudden bruising. Topical and systemic corticosteroids cause skin thinning, making one prone to bruises. Many a time bruising can be caused due to liver ailments, kidney diseases and blood disorder. Hope this will helps you. Take care.