Causes of miscarriage in dogs

Veterinary consultation

The arrival of new canine members to our home is undoubtedly good news. To do this, we must ensure that the mother has a pregnancy as bearable as possible. However, unforeseen events often occur that can trigger miscarriage in dogs.

Abortion in dogs: when is important

The period of gestation of a dog – between 63 and 67 days approximately – is one of the most delicate moments for the animal. During that time, there is a complex balance at the physical, hormonal, and nutritional level that makes embryos develop and grow.

However, during all that time, unfortunately, something can be twisted. And the moment this happens can influence our pet and its possible offspring to a greater extent. In general, abortions or interruptions of pregnancy that occur before the fifth week are usually related to possible infertility of the animal.

In these cases, undeveloped embryos become reabsorbed. This has no negative consequences for the mother, and it even goes unnoticed. However, spontaneous abortion in dogs from the fifth week of pregnancy takes its toll, as it entails many pains and is more difficult to cope with at all levels.

What are the most common causes of abortion?

As we have already mentioned, gestation in dogs is subject to a series of factors that maintain a balance. This is why the imbalance in some of these factors – especially in the last phase of pregnancy – can lead to the result of spontaneous abortion. One of these factors has to do with hormones and is that any mismatch of this system – for example, in progesterone – causes virtually irreversible alterations.

Some medications can also negatively influence the development of puppies, so there must be strict supervision by the veterinarian, in case it is necessary to administer drugs to our pet.

Miscarriage in dogs can also have a microbial cause. Some bacteria – from the genus Brucella or Listeria, among others – are responsible for causing irreversible disorders that result in the termination of pregnancy. Other microorganisms can appear in places as common as food or water, so monitoring of the animal’s diet becomes essential.

Finally, several ‘internal’ factors can negatively influence pregnancy. Perhaps the most relevant of these is age since pregnancies begin to be a risk factor as our pet ages.

Symptoms of spontaneous abortion in dogs

Detecting that something is wrong in our pet’s pregnancy is not an easy task. The main reason is that the symptoms that may occur are quite nonspecific, such as:

  • Abdominal pain.
  • Fever.
  • Vomiting and diarrhea
  • Loss of appetite and apathy.

Other symptoms such as heavy bleeding or abnormal vaginal discharge are more indicative and, if we detect them, we must go quickly to the veterinarian. Once the diagnosis is made, you can inform us about the steps to follow, in addition to pointing out the possible cause.

If unfortunately, spontaneous abortion takes place, we as owners must focus all our attention and our affection towards the dog since it is probably depressed and tired. If all goes well, with our help, little by little, our pet will be the same as before.

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