lump in throats on multiple guinea pigs

[reenact12321]

Recently (as posted elsewhere) one of my pigs developed a sizeable abscess in her throat area. No indication of dental issues were found. I've always fed timothy hay, oxbow high quality pellets, lettuce, green peppers, cilantro and cucumber. The lump got to about the size of a grape when I noticed it, and we began surgical undertakings to remove it.

Besides that, no ill effects were found. Dental health looked good, eating and bacterial issues (URI etc) were not seen. We figured it might have been a puncture or nip that got infected.

So I did a health check on everybody with that in mind and found that of the four, the three adults (including the original pig) all have a slight lump in this area. Not nearly as pronounced as what patient 0 had, but definitely something raisin or peanut sized. Loose in the tissue, and not painful to touch or squeeze. Are these all likely to be abscesses as well? Do I need to seek treatment? And if so what could be causing this?!

They are kept on a Guinea Dad mat but often have hay everywhere, They chew up wicker style huts for fun, could these all be mouth injuries? Should I seek surgery on 3 guinea pigs? This is mind boggling. As with the first pig, I don't see any ill effects, just a little lump in soft tissue. Other than that, they seem to be in the peak of health.

[Lynx]

I encourage you to post on your original topic. I will close this one, since keeping your posts together will likely be helpful.
https://www.guinealynx.info/forums/viewt ... =2&t=77198

Meanwhile, read about Cervical Lymphadenitis (CL) or "Lumps" (See also Tracis' Links topic in the reference forum)
https://www.guinealynx.info/forums/viewt ... 439#160439

Tracis' Links topic:
https://www.guinealynx.info/records/viewtopic.php?t=75

Remove the wicker style huts.