Why is my 10 year old chihuahua coughing?

Dr. Marie replied:

There are a number of things that can cause a chihuahua to cough.

When I hear of a 10 year old chihuahua who is coughing I do tend to get concerned about heart disease. Any little dog is prone to heart disease.

When you are able to take her to a vet your vet will have a good listen to her heart to see if there is a murmur or arrhythmia at all. They may also want to take an xray to determine if the heart is enlarged and also if there is fluid in the chest.

When a dog has a heart problem there are two possible things that can cause them to cough. The first, is that the enlarged heart can push up on the trachea and cause irritation which promotes a cough. The second is that the diseased heart causes fluid to build up in the lungs which causes a cough as well.

If this is heart disease there are a number of things that can be done to help. Your vet may prescribe a heart medication such as Vetmedin, Fortekor or Enalapril and may also prescribe a diuretic such as Lasix to relieve the fluid in the chest.

There are other things that can cause a chihuahua to cough, but would be less common in an older dog. These include:

• Kennel cough. This is a virus that usually produces a loud hacking cough that sounds like the dog has something stuck in her throat. The cough usually only lasts for a few days and usually goes away on its own. However, some dogs do get fairly sick and need antibiotics.


• Collapsing Trachea. This is a condition that commonly affects small dogs and causes a honking cough. However, it is usually present from a young age.


• Dental Disease. Chihuahuas are very prone to getting dental problems. If there is severe infection in her mouth then this can cause coughing.


• Cancer. Cancer can be a cause for a cough, but it's not as common as the other things mentioned.


• Fungal Disease. There are fungal infections that can cause a cough but again, this would not be likely for your dog.

I hope she feels better soon. Hopefully you will be able to have a vet visit soon!

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---



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