Lump.. Bump..???

[cITrUS]

We have a male stripped amel, he weighs about ~680 g and is ~5 years old. He has these lumps or bumps along the outside of him a pea size is what I would estimate; they are soft to touch and disapear when he bends his body outwards. He has about 5 or 6 of them. I searched on the net to see if I could find anything on it and it gave me a list of "could be's" but no pictures. I would post some but my camera battery is dead.

We've had him a year plus and he did have 1 lump when we first got him but now he has more. He is active, good eater.. He did just breed with one of our females and that is when I really noticed it.

Has anyone or does anyone have an idea of what it could be.

Let me know...
Denise