Why is my 10-month Shih Tzu peeing on the bed on Sunday nights?

3 months is still EXTREMELY young, and I would not consider a 3 month old puppy to be fully house-trained. Any new situation can always cause a regression in training until worked on, and some dogs may have accidents on occasion until they are old enough and their bladder is fully developed. I would give her a few minutes in between going outside, and letting her on the bed at night, to give her a chance to settle down and relax. It's very possible that the fun of being on the bed is just too exciting (or scary) and is causing her to have an accident as many puppies may experience excitement or submission urination, even if they've already gone potty outside. Once she is calm, you can put her on the bed, but try not to make a big deal out of it, to see if keeping her relaxed helps. If she does immediately pee, she may just need to stay off the bed for a while longer until she is a bit older. An enzymatic cleaner can also be used with any bedding when it is washed to help break down any urine particles that may be attracting her.

Thanks for using Petco Pet Education Center, formerly Petcoach! Inappropriate urination is often a medical issue and possibilities include a urinary tract infection, urinary tract stones, among other possible medical reasons. Another possibility is that this is behavioral in nature. I recommend that you have Millie evaluated by your veterinarian for further assessment and treatment. They would be able to check for these possibilities and treat accordingly. Good luck and best wishes!


Hi, puppies can get urinary tract infections. I would watch her for urinating more frequently and in small amounts. At 7 months, she should be mostly house trained so this is not likely a behavior issue but it is still possible. I would take her to the vet for an exam if it happens a third time. They can put her on some antibiotics for this and she should be fine. Good luck!

If there has been a sudden change to Barfi's urinary habits, there could be a urinary tract infection or the presence or crystalline material / stones within the urinary tract. A urine analysis and an x-ray of the abdomen would be able to see if either of these are currently present. You might also in the mean time just start putting out additional pads and extending their boundaries so that there is a greater leeway when accidents happen.

It is possible that Piper is the dog that urinated on your bed. I would recommend taking her to the vet and making sure she does not have a urinary tract infection before discussing behavioral urination. Urinary tract infections can make dogs drink more water but also commonly they will urinate in the house or an abnormal location. If she does not have a urinary tract infection than it is important to start looking at behavioral reasons

The most likely fluid in a spayed female dog would be urine. When a dog dribbles urine or leaves spots of urine on the bedding I often think about urinary tract infections. Older dogs can also develop urinary sphyncter incompetence (or a weak sphyncter), making it difficult for them to hold their bladder overnight. There are also less common causes, for instance bladder stones or endocrine diseases. Your veterinarian will likely offer to run a urinalysis, a urine culture, and maybe some bloodwork on Sassy to determine what might be causing the urine leaking. There are antibiotics we use for urinary tract infections and if it appears to be loss of bladder control there are medications to help with that as well. A visit to the vet should help you sort out the cause and hopefully get Sassy acting more like herself. I hope this was helpful!

I would make sure that Simba does not have a medical issue like a urinary tract infection, bladder stones or cystitis. I recommend taking him to your vet for a urine test. If the urine sample is normal than it is likely he has a behavioral issue. I would recommend picking up the water before bedtime to help prevent urination overnight. Also you could start to crate train him too.