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NancyH, Dog Expert:Rescue, Train,Breed,Care
Category: Dog
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Experience:  30+ yrs dog home vet care & nursing, rescue, behavior&training, responsible show breeding, genetics
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What causes crystal to form in a female dogs ...

Resolved Question:

What causes crystal to form in a female dog's urine. She pees all the time and is now on antibiotics. Will this stop it and will there be any lasting problem?

Optional Information:
Age: 1; Female; Breed: Newfoundland

Already Tried:
Is currently on SMZ for bladder infection but have been advised this will not cure crystals from forming and she pees constantly and almost seems incontinent although that med did not help

Submitted: 10 years ago.
Category: Dog
Expert:  NancyH replied 10 years ago.
Infection can cause crystal formation. If that is the issue clearing up the infection should work.
You can read here about bladder stones and crystals
Hope this helps you!
Customer: replied 10 years ago.
I read that already, thank you.
Expert:  NancyH replied 10 years ago.
If you had already read that information what was your question?
Customer: replied 10 years ago.
Relist: I still need help.
I want to know what long term problems there could be. What is common method of treatment for crystals not stones
Expert:  NancyH replied 10 years ago.
Long term the crystals form into stones, can damage the bladder wall, and cause discomfort and of course urinary blockages which can be fatal. Crystals are simply small formations and stones are the large ones.
The treatment depends on the kind of crystals they are.
Some are formed by infections being present in the bladder and resolving the infection resolves the problem. The infection breaks down the urea in the urine and in series of chemical actions a matrix which the struvite crystals use to form an actual stone is created.
Some stones made of calcium oxalate are formed because the dog has a faulty gene and cannot inhibite the precipitation of the calcium in the urine. For that a special diet to limit the amount of mineral consumed may help.
Struvite requires an alkaline pH to form while oxalate requires an acid pH to form.
The minerals precipitate out of the urine and form crystals which then attract more of the mineral to them making a stone.
Newfoundlands have a special inherited disorder that is different called Cystinuria
Cystinuria in dogs is generally treated with compounds that bind cystine and prevent crystal formation. The two most common drugs of choice are 2-mercaptopropionylglycine (MPG)and D-penicillamine. Newfs may need a larger dose of MPG than other breeds to help resolve this problem.
Otherwise you are looking at repeat surgery to resolve continual stone formation.

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