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Sports Medicine

Soft lump/bump on leg after exercising

04/19/2006

Question:

I`ve been running about 3 - 4 times a week for couple months now. I noticed a soft lump/bump in the front of my lower leg after my run yesterday then went away after about 10 minutes. It also pops out when I have my legs crossed. It doesn`t hurt. Is this something I should worry about?

Answer:

This soft bump may be one of several things:

The bump may be a series of dilated veins in the skin that enlarge after exercise but then decrease in size after exercise has been completed. 

It may also be a cyst in the skin that becomes more prominent with changes in the positioning of the legs.

Finally, it could also be a due to a small defect in the tough fibrous covering around the muscles of the leg that allow muscle to herniate through it during exercise. 

For a definite diagnosis, you would need to be seen and examined by your physician.

For more information:

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Response by:

Charles Webster, MD
Assistant Professor
College of Medicine
University of Cincinnati