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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Intermittent Appearance Of A Bruise With Knot On Left Forearm?

I noticed a nickel sized bruise on my left forearm about 3 weeks ago. It was only slightly discolored when I noticed it and there also seems to be a small knot under the skin. It hasn t gone away completely and the coloring seems to change. A few days after I noticed it the blue/green tint was gone but it still felt like a normal bruise. The next week the blue/green tint was back and then a few days later it was gone but felt the same. Now the color is bac again. I plan on making an appointment to have it checked, but wanted to make sure I didn t need to do something immediately. Thanks!
Wed, 3 Jun 2015
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Orthopaedic Surgeon, Joint Replacement,  's  Response
Hi,
Thanks for your query.

Unexplained bruising once in while is understandable but if occurs frequently should be investigated thoroughly since it can indicate an underlying medical condition or ailment.
It has been observed that bruises are often observed more on women than men. Women often complain of bruising on legs, thighs, buttocks and upper arms. Thinner people are more prone to bruising as they lack the fat cushion that helps prevent injury. It may also 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.

I do hope that you have found something helpful and I will be glad to answer any further query.
Take care
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What Causes Intermittent Appearance Of A Bruise With Knot On Left Forearm?

Hi, Thanks for your query. Unexplained bruising once in while is understandable but if occurs frequently should be investigated thoroughly since it can indicate an underlying medical condition or ailment. It has been observed that bruises are often observed more on women than men. Women often complain of bruising on legs, thighs, buttocks and upper arms. Thinner people are more prone to bruising as they lack the fat cushion that helps prevent injury. It may also 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. I do hope that you have found something helpful and I will be glad to answer any further query. Take care