Large soft lump on hen

[Skeezix]

My hen has a large soft lump on abdomen. The only other thing I see is scratches from her spurs on her abdomen. Yes, she is a 4 year old hen who has recently stopped laying. I don't know if this is an infection or what I can do for it. Help!

 

[Eggcessive]

Welcome to BYC. Can you post a picture? Is there feather loss on the bump, and whereabout on the abdomen is the lump?