hello to you all, i have two border collies. one 7yr old and the other 2yrs, the youngest has for some reason started to wee indoors, everything seems ok with him, just cannot understand why he is doing this?. it happens at night,no other time, so in the morning i am met with a large puddle in the kitchen, as a puppy he was always caged at night so toilet training wasnt a problem, so do i re introduce the cage for say a week?, we are really baffled to why he has started doing this, so your help and advice would be greatly appreciated

I think a trip to the vets would be my first priority, just to make sure there is no underlying medical condition.

As Twiggy said - I would say there's a fair chance she might have a Urinary Tract Infection which is cleared up with a course of antibiotics

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Thanks for that, yes will take him for check up, but he,s only doing it at night when we all in bed. dont seem to bother him in the day time, and sometimes he is left alone for some time,still will take him monday to see vet.