A couple of weeks ago, I wrote a post about reasons why a guinea pig might bite or nibble your hand. The post stemmed from a question e-mailed to me by a young girl. A follow-up question from her yielded another dilemma. She wrote, "She has started peeing on me all the time, it's really very annoying. I don't know what to do. I know that they have signals, but she's always biting me or nibbling so I don't know."
Most of the time, guinea pigs are actually quite polite, giving us signals when they need a bathroom break. These signals can include:
- constant fidgeting accompanied by repeated checking of their back ends
- circling around and around on your chest or lap
- constantly repositioning themselves, dropping their rumps on you with an adamant thump
- backing their rumps up to the edge of your lap, shoulder, chest, arms, etc. (in an attempt to pee away from you and them)
- biting or nibbling your hand or fingers (usually when you've missed, or ignored, all other signals)
While wet laps don't occur every time you hold your guinea pigs, they do happen. You can minimize your chances with simple observation and careful timing. Notice when guinea pigs drink a fair amount of water (though guinea pigs who habitually drink a lot of water can be a particular challenge), and give their bodies time to process it before holding them -- or plan on a short session of cuddling. Same goes for pigs who have just eaten juicy fruits or vegetables, like melon, cucumber, and so forth.
Learn, too, each pig's unique clock. I've had pigs who could sit on my lap for an hour or more before the urge hit, and others that get the urge after 20 minutes or so. I've also encountered pigs who had a habit of peeing when they were half-asleep, presumably because they got so relaxed that their bladders let loose but their internal alarms didn't go off. Age can also be a factor; very young guinea pigs haven't learned to "be polite" yet, and the bladders of older guinea pigs are not as resilient as they once were.
In rare cases, with guinea pigs that don't (by nature) like to be held much, the "I gotta pee" alarm seemed like a measure of self-defense, of protecting their boundaries. They didn't want to be held, tolerated it for a handful of minutes, and then triggered the panic button...presumably because they'd learned through experience that the threat of getting peed on was the one thing that would get their human to put them back in their cage or play area.
All that said, no matter how watchful you are, the odds are that you'll get peed on at least once, and probably more. Rather than get soaked, learn to have some cozy sacks or old clean towels handy for lap time. As a general practice, I always have a towel folded up under my pigs. If you want a little extra protection, puppy pee pads are a great investment.
If you've noticed that your pigs have some signals that I didn't list here, please share them. Every pig is different and, thus, so are the warning signals.


One of mine also pulls at my left shoulder with his little teeth - just my shirt, not me - when he needs to go. He has also started to jump into the litter box before I pick him up, go, and then let me hold him.
My other three aren't so quite so obvious, but they will all try to climb down on the couch to go in the dark recesses of a throw blanket before they'll go on us.
Posted by: Catherine | September 04, 2009 at 04:20 PM
A few of my pigs chatter at me when they need to go.
Crystal (who I adopted from you) climbs into my arms when she wants to go back. She's turning out to be a very intelligent little pig, not to mention completely adorable.
Posted by: Laura | August 28, 2009 at 02:59 AM
My pigs yank of my shirt when they want to go to the bathroom. Sometimes they pull a little too hard - I have shirts with holes from waiting too long.
Posted by: Julie | August 26, 2009 at 03:13 PM
I've found that our three girls all get fidgety and whiny -- and then a little nippy, if we don't pay attention -- when they've "gotta go." The nipping is really only just a little open-mouthed touching of their teeth to our skin...nothing that actually hurts. They just want us to pay attention.
They definitely prefer to potty in their cages than on us! I can count on one hand the number of times I've been "dampened," and it's almost always been when I didn't pay attention to their signals.
Posted by: Angela (g33kg0dd3ss) | August 25, 2009 at 10:24 PM