Guinea Pig Pee Mysteries: Why They Aim at Us

To pee or not to pee, that is the question – unless you’re a guinea pig, in which case you won’t be able to hold it in. Being urinated on isn’t something that is often talked about when deciding to get pet cavies. It can shock new owners to see a wet patch appearing while holding your piggy, and you may wonder why your guinea pig pees on you.

The most likely reason that a guinea pig will pee on you is because it has a full bladder. Being urinated on is common when you have piggies, and it is normal behavior. Other reasons may include that the animal is nervous, stressed, showing dominance, or displeasure. Cavy urine is not toxic.

All cavy owners know the familiar warm, wet sensation while enjoying lap time with their pets. Let’s find out more about why your piggies can’t hold it in and how to cope with the frequent waterworks from your little fluffballs.

Why Do My Guinea Pigs Keep Peeing On Me?

Guinea pigs need to urinate frequently, and while outside their cage, they can’t head to their usual bathroom spot, so they go where they are. If that happens to be while they are on your lap, it may be unpleasant for you, but it is perfectly normal for your piggy.

Healthy cavies urinate approximately every 15 minutes. Unless you time your pet’s outings perfectly, there is a good chance you may be on the receiving end of a piggy pee while you spend time together.

Having a full bladder isn’t the only reason that a piggy may pee on you every time you pick it up. Some other possible explanations include:

  • It is nervous – This is particularly likely if the guinea pig is new or not used to being handled regularly.
  • Stress – Being out of the cage in unfamiliar territory can be stressful for a piggy. There may be sounds or smells outside the cage that could be upsetting, especially if you have other pets like dogs or cats.
  • It could be frightened – It is important to know how to handle your piggy correctly so that it feels safe and supported. It may pee because it is scared and as a way to get released.
  • It may be a show of dominance – Guinea pigs use different forms of communication from humans. Peeing on something can signify ownership and hierarchy dominance over other piggies.

Always remember that frequent urination is perfectly normal for guinea pigs, and it is not something they can help. If they need to pee, then that is what they must do. Their bladders are tiny, so they can’t hold it in like many other animals.

Signs Your Guinea Pig Is About To Pee On You

There isn’t much you can do to stop your cavy peeing, but once you get to know your pet well, it is often possible to tell when it needs to go. By remaining tuned into your piggy during lap time, you might learn to identify signs that it wants to be put back in its cage to use the bathroom.

Some tell-tale signs of a full piggy bladder include:

  • Fidgeting – An animal that was enjoying being petted and stroked may suddenly become restless.
  • Nipping – Your cavy may try to get your attention that it needs to go by nibbling or nipping on your skin or clothes.
  • Backing up – Guinea pigs often move into reverse gear to position their bottoms in an area where they feel comfortable peeing or pooping. If your piggy is out of its cage and you spot it backing up, it’s time to gently scoop it up and return it to its cage.
  • May suddenly become more lively or vocal – A piggy that needs to go may try to alert you by wheeking or squeaking.

Can You Train A Guinea Pig Not To Pee On You?

Although it is possible to potty train a piggy, it takes a lot of time and effort. An effective and practical strategy to manage your cavy’s frequent waterworks during lap time is a combination of watching for signals that the animal is about to pee and taking precautions to minimize the effect of accidents.

Some practical ways to cope with your guinea pig’s need to urinate frequently while still enjoying quality time with your pet include:

  • Wear old clothes when playing with your pet. Your cavies love you just the way you are, so there is no need to dress up for them. Save your oldest clothes that are easy to wash for interacting with them.
  • Cover your lap, sofa, or floor with absorbent towels or puppy pee pads. Training pads are available in washable and disposable versions.
  • It may help to limit watery foods before playtime. A piggy that’s been snacking on watermelon or cucumber is more likely to need the bathroom in less than 15 minutes!
  • Monitor the length of time you keep the piggy on your lap. Try holding it for 10 minutes, and if there are no accidents, put it back into its cage, and watch if it goes to its bathroom area.
  • Always handle the little animal very gently. Holding it tightly is more likely to make it empty its bladder.

Is Guinea Pig Urine Toxic?

Guinea pig pee is not toxic, but it is necessary always to wash your hands before and after handling your piggy. The concern is that rodent urine can contain parasites that are harmless on your hands, but it is better if they don’t somehow get into your mouth or nose.

Although cavy urine is usually perfectly harmless to most people, there is evidence that some animals may carry an organism called Encephalitozoon cuniculi which is more common in rabbits. People with the highest risk of infection are those with lowered immunity.

Guinea pig urine shouldn’t smell bad when it pees on you. It can become smelly in concentrated amounts if the cage isn’t cleaned regularly. If your piggy’s pee smells foul, it may have a urinary tract infection, and it should be seen by a veterinarian as soon as possible.

How To Remove Guinea Pig Urine From Fabrics

Being a piggy parent means that you will inevitably get peed on from time to time. Fortunately, guinea pig urine doesn’t stain fabrics; with some basic household ingredients, you can also eradicate odors.

Always remember to wear old clothes when handling your piggy. To remove piggy pee from fabrics, gather the following materials:

  • Equal parts of white vinegar and water
  • Baking soda
  • Enzyme detergent
  • Hydrogen peroxide

Here’s what to do:

  1. Blot up as much of the pee as possible using a paper towel.
  2. Spray the urine mark with the vinegar solution and leave it for 15 minutes.
  3. Then rub in a sprinkling of baking soda. This is usually enough, especially if you are cleaning up wet urine. Once you have done this, you can wash as usual.
  4. If it is a persistent stain, mix a 3% hydrogen peroxide solution with baking soda and apply it to the mark.
  5. Wash the clothing item om warm water. Before you dry the garment, ensure that the mark is gone, or repeat.


Guinea pigs pee frequently, so it is inevitable that they may pee on you, especially if lap time is longer than 15 minutes. Other reasons may be that the animal is nervous, stressed, frightened, or showing dominance. Many cavies show signs that they need to use the bathroom, which owners can use as an early warning system to avoid getting peed on.