https://www.housesitmatch.com/blog/6-signs-of-an-ageing-dog/ housesitmatch.com

How To Get Rid Of Dog SmellBlog
Accidents are a part of life and are a part of puppy training, in particular. If your dog pees on your carpet and you are faced with trying to remove the bad smell, don’t panic. However, if it keeps repeatedly happening, you will need to establish an effective way of keeping your carpets clean.

You might also want to take your dog to the vet to make sure it doesn’t have any health issues, particularly if it is an older dog. If you have a puppy in training, it will need to be taken outdoors as much as possible to establish a routine.