Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Might a Dog Have a Seizure After Nursing? Our Vet Explains

Litter of Small Breed Newborn Puppies Nursing on Their Mom

You’ve got a healthy litter of puppies, but what about their mother? Some dogs develop seizures after they have puppies, and it’s generally a life-threatening condition. Why does this happen, and how can it be prevented? The most common cause of a dog having seizures after nursing is eclampsia. Let’s take a deeper look.

Dogster divider_v3_NEW_MAY_24_

Why Did My Dog Have a Seizure After Nursing Puppies?

The most common reason dogs have seizures when they’re nursing puppies is due to eclampsia. Your dog’s calcium levels can dip dangerously low, leading to seizures or tremors.

There are certainly other possibilities for a dog to have seizures, such as liver disease, trauma, and an underlying neurologic condition. While these conditions should be on your veterinarian’s list of differential diagnoses, eclampsia is likely at the top.

dog-lying-on-the-ground-in-the-street-with-seizure-while-owner-taking-care-of-them
Image Credit: Kazantseva Olga, Shutterstock

What Is Eclampsia?

Eclampsia is known by several other names, including milk fever and lactational hypocalcemia.

In eclampsia, your dog’s calcium level gets very low, mainly due to the amount of milk it produces. It typically occurs at peak lactation, usually two to three weeks after the puppies are born (although it can occur before the puppies are born or after this highest point of lactation).

Small breed dogs are most commonly affected, especially if they have a large litter of puppies. Breed examples include:

In addition to usually being a smaller dog, there are several risk factors for dogs developing milk fever:

  • Not eating a diet designed for growth with plenty of calcium
  • Getting too much calcium supplemented when pregnant
  • Hormonal issues that affect calcium levels, such as problems with the parathyroid gland
  • Producing too much milk too quickly
  • Low protein albumin levels, which help to transport calcium in the body
A-female-Cavalier-King-Charles-Spaniel-lies-in-a-dog-bed-nursing-her-newborn-puppies
Image credit: Colin Temple, Shutterstock

Signs of Eclampsia in Dogs

Signs of milk fever can progress quickly from being restless to full-blown seizures, sometimes in under an hour. Initial signs of eclampsia include panting or drooling, which can indicate discomfort or nausea. Your dog’s movements may become stiff.

Calcium helps regulate muscle movements, so when your dog becomes hypocalcemic, you can see:

  • Tremors
  • Lack of coordination
  • Seizures
  • Elevated body temperature (hyperthermia)
  • Death

Seek veterinary advice if you’re concerned about your pet’s well-being.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


Treating Eclampsia in Dogs

If you see any signs associated with milk fever in your dog, get your dog to a veterinarian immediately. At the veterinary hospital, your vet will check your dog’s vitals and run blood work, particularly checking the calcium level.

If your dog is unstable, the veterinary team will likely start your pet on IV fluid therapy. They’ll slowly replace your dog’s calcium levels, monitoring for changes such as cardiac arrhythmias.

If your dog shows other signs, such as hyperthermia or tremors, your veterinarian will likely treat those. Your vet might use anti-seizure medication or muscle relaxers. Additionally, the puppies need to be weaned quickly, and your dog will likely need a calcium supplement.

Preventing Milk Fever in Dogs

Make sure your dog is eating a quality puppy food in the later stages of pregnancy and when nursing the puppies. Puppy food is formulated for growth and contains higher calcium levels than standard pet food.

Only use calcium supplements if your veterinarian suggests them. Supplemental calcium can cause your dog’s body not to recognize and respond to its internal calcium levels, potentially leading to eclampsia.

Especially if your dog has many puppies, give them a hand and feed them a supplemental milk replacer periodically.

Dalmatian dog eating dry food from a bowl
Image By: Sergey Fatin, Shutterstock

dogster paw divider

Frequently Asked Questions (FAQ)

Can a dog die from milk fever?

Dogs can pass away from milk fever in a short period, as little as 30 to 60 minutes. The seizures and muscle tremors can impact your dog neurologically and also cause potentially fatal hyperthermia.

Can you treat milk fever at home?

You should not treat milk fever at home. While dogs with milk fever usually only need to be hospitalized for a portion of the day, they typically need IV supportive care and monitoring.

Dogster divider_v3_NEW_MAY_24_

Conclusion

Eclampsia is a scary condition that can cause your dog to have seizures after nursing her puppies. At the first sign of muscle tremors or incoordination, contact your veterinarian. If caught early, most cases are treatable.


Featured Image Credit: Anna Hoychuk, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Frustration-Elicited Aggression in Dogs: Vet-Verified Info & How to Stop it

Even the most sweet-natured dog can suffer bouts of aggression from time to time. While this is normal, it shouldn’t be ignored, as...

8 House Rules for Dogs & How to Set Them: A Vet-Approved Guide

Getting a dog isn’t all sunshine, frisbees, and couch cuddles; it’s also a lot of hard work in planning how the dog is...

Snip Snip: Manic Gets Neutered

Hi, I’m Allison! Read my introduction to learn more about me and my three mixed-breed dogs from Thailand, Jelly, Lorraina, and Manic. Living...

Sharp Eagle (Shar-Pei & Beagle Mix) Dog Breed: Info, Pictures, Care & More

Sharp Eagles are not a type of eagle, but you probably already know that. They are a mix of two purebred dogs: the...

More related

10 Off-Leash Dog Parks in Miami, FL (2025 Update)

If you live in or have visited Miami, Florida, you know it has a bustling nightlife, gorgeous beaches, and fine restaurants. However, if...

How Big Do Newfoundland Dogs Get? Average Weight & Growth Chart

Newfoundland dogs, affectionately known as Newfies by their adoring fan club, epitomize the gentle giant. These massive dogs are renowned for their power,...

Can a Human Eat Dog Food? Vet-Approved Facts & FAQ

If you’re thinking about eating dog food because you’re out of options, we have some bad news for you. Dog food is not...

Can French Bulldogs Go Up & Down Stairs? Our Vet Answers

If you’ve just brought home a new French Bulldog, congratulations! Now, have you started puppy-proofing everything? After you survey the room, you might...

Keep reading

Can Dogs Eat Guava? Vet-Verified Nutrition Facts & FAQ

While not every kind of fruit is suitable for dogs, some are safe to feed in moderation and can even offer a nutritional boost. Guava is a tropical fruit from the Myrtle family that grows on trees. Guava is a...

Can Dogs Eat Guava

Are Dogs Carnivores or Omnivores? What Research Suggests

If you have a dog, you know that there are few things that they like more than pieces of meat, but they also like to steal just about any other kind of food off the table, causing many people to...

close up of a dog eating from the bowl

Can Dogs Eat Red Cabbage? Vet-Verified Nutrition Facts & Info

Finding healthy treats for our dogs isn’t as straightforward as many pet parents might think, especially when considering vegetables. Due to our many biological differences, the plants that benefit us in our diets are often unexpectedly hazardous to dogs. Though...

Dogster-Can-Dogs-Eat-Red Cabbage

11 Best Large Breed Dog Foods in 2025 – Reviews & Top Picks

Large breed dogs need different nutrition than other breeds out there. They require more joint-supporting supplements, for instance, because their joints carry much more weight. Most large-breed dog foods are designed specifically to counteract these issues. However, this isn’t always...

labrador eating outside

Can Dogs Eat Slim Jims? Vet-Verified Nutrition Info & Risks

Dogs are known to love snack foods for humans, but can they indulge in a Slim Jim? The short answer is no, Slim Jims are not good for dogs. Read on to find out why this snack lacks benefits for...

Can Dogs Eat_Slim Jims

WholeHearted Dog Food Review 2025: Pros, Cons & Our Verdict

WholeHearted is a line of dog foods owned and operated by Petco, one of the largest pet retailers in the United States. A healthy food that appeals to a wide audience, it’s a fairly new brand that continues to expand...

Dogster_WholeHearted Dog Food Review

Can Dogs Eat Brisket? Vet-Verified Nutrition Facts & Risks

Brisket is a cut of beef from a cow’s lower breast muscles. The lower breast is a well-worked area of the body, so the meat cooks best in a slow cooker combined with seasoning and vegetables. The result is a...

Can Dogs Eat_brisket

Shameless Pets Dog Treats Review 2025: Our Expert’s Opinion

Review Summary Shameless Pets is a pet food company that makes both dog and cat treats out of upcycled ingredients — meaning they use surplus and misfit produce (think jumbo blueberries and leftover post-Halloween pumpkins) to make their products. This...

Dogster_Shameless Pets Dog Treats Review