Health
When does straining become an emergency?
Thirty minutes of strong straining without producing a puppy, or two hours of weak straining, means calling the vet rather than waiting.
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Pregnancy and Whelping Complications in Bernese Mountain Dogs
Quick answer
When does straining become an emergency?
Thirty minutes of strong straining without producing a puppy, or two hours of weak straining, means calling the vet rather than waiting.
Most Bernese whelpings go well. The ones that do not go wrong slowly, and the difference is usually whether someone was watching the clock.
Breeders preparing for a first Bernese litter who need to know what normal looks like, and owners of an unexpectedly pregnant bitch who need a plan quickly.
Important reminder
This guide is not medical advice. If your dog shows pain, sudden behavior change, or worsening symptoms, consult a licensed veterinarian.
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What this problem looks like
Pregnancy and whelping complications in a Bernese Mountain Dog range from a labour that stalls, through malpositioned or oversized puppies requiring caesarean delivery, to post-whelping problems including retained placentas, uterine infection and dangerously low blood calcium during nursing. The breed's structure is reasonably favourable for natural birth; the risks come mainly from large litters, long labours and an inherited clotting disorder documented in the breed.
Common triggers
- A large litter, which prolongs labour and drains the bitch metabolically
- An oversized or malpositioned puppy obstructing delivery
- Uterine inertia, where contractions weaken before the litter is delivered
- An inherited bleeding disorder raising haemorrhage risk during surgery
- The demands of nursing, which can precipitate a fall in blood calcium
- Whelping in a household without a rehearsed emergency plan
Most Bernese whelpings proceed without surgical intervention, and this breed is not among those in which caesarean delivery is routine. Serious complications are the exception rather than the rule. What makes preparation worthwhile is that the complications which do occur move fast, and that the breed's documented von Willebrand's disease means bleeding risk cannot be assumed to be normal without testing.
Why this happens
Breed factors
Two breed characteristics dominate. The first is favourable: a Bernese has a proportionate head and a large frame, so the mechanical mismatch that forces caesareans in some breeds is largely absent. The second is not: von Willebrand's disease is documented among this breed's health issues, and a bleeding disorder in an animal undergoing abdominal surgery or a haemorrhagic delivery is a serious complicating factor. Body size adds a practical dimension, since a bitch weighing 70 to 115 pounds in difficulty cannot simply be picked up and carried.
Environment factors
Preparation is the environmental factor that determines outcomes. A whelping area that is warm, quiet, non-slip and away from household traffic reduces stress-related labour delay. Distance from a twenty-four hour surgical facility is a genuine risk variable, because a stalled labour has a window measured in hours. Household staffing matters too, since whelping a large litter is a multi-day task requiring someone present continuously, and fatigue is what causes intervals to be missed.
What you can do at home (once it is not an emergency)
When to talk to your vet
Contact a veterinarian immediately for strong straining lasting more than thirty minutes without a puppy, weak straining for more than two hours, more than two hours between puppies when more remain, green or dark discharge before the first puppy, a puppy visibly stuck, or a bitch who becomes exhausted, collapses or has a high temperature. After whelping, treat restlessness, panting, stiffness, tremors or seizures in a nursing bitch as an emergency, since low blood calcium progresses rapidly. Foul-smelling discharge or a bitch who stops eating and becomes feverish also needs same-day attention.
At home, alongside your vet's plan
- Take rectal temperature twice daily during the final week and log it, since the drop before labour is the most reliable advance warning available.
- Have the litter counted by imaging in late pregnancy so you know when whelping is actually finished.
- Write the labour intervals on a card and fix it to the whelping box where anyone on watch can read it.
- Weigh every puppy daily on a kitchen scale and record it. A puppy who fails to gain is the earliest sign of trouble in the litter.
- Confirm the drive time to a twenty-four hour surgical facility before whelping week, and arrange for a second person to be available to help move the bitch.
More Bernese Mountain DOG health & behavior issues
Start here: Bernese Mountain Dog Most Common Genetic Disorders
- After GDV Surgery: Recovery for Bernese Mountain Dogs
- Bernese Mountain Dog Acute Disc Herniation: Emergency Guide
- Bernese Mountain Dog Heart Murmurs: Grades and Next Steps
- Bernese Mountain Dog IVDD: What It Is and What It Is Not
- Bernese Mountain Dog Kidney Disease: Signs and Monitoring
- Bernese Mountain Dog Pancreatitis and Diabetes: The Link
- Bernese Mountain Dog Pancreatitis: Triggers and Warning Signs
- Bernese Mountain Dog Allergies: Itch, Ears and Skin Infections
- Bernese Mountain Dog Immune-Mediated Thyroiditis Explained
- Bernese Mountain Dog Obesity: Why the Coat Hides It
- Bernese Mountain Dog Patellar Luxation Surgery and Recovery
- Bernese Mountain Dog Separation Anxiety: A Real Training Plan
- Contact Skin Allergies in Bernese Mountain Dogs: Paws, Belly and Lawns
- Does the Bernese Mountain Dog Have Brachycephalic Features?
- Noisy Breathing in Bernese Mountain Dogs: What It Is If Not BOAS
Pregnancy Complications in other breeds
- Jack Russell Terrier Pregnancy Complications: Signs
- Labradoodle Pregnancy Complications: Signs & What to Do
- Maltese Pregnancy Complications: Signs, Causes & What to Do
- Miniature Schnauzer Pregnancy Complications: Signs
- Poodle Pregnancy Complications: Signs, Causes & What to Do
- Rottweiler Pregnancy Complications: Signs & What to Do
- Standard Schnauzer Pregnancy Complications: Signs
- Yorkshire Terrier Pregnancy Complications: Signs
- Akita Pregnancy Complications: What Breeders Should Know
- Bichon Frise Pregnancy Complications and Whelping Risks
See all Bernese Mountain DOG health problems, which breeds are prone to pregnancy complications, or the full Bernese Mountain DOG breed guide for temperament, exercise needs and ownership costs.
What to expect, and how you know it is working
Gestation runs approximately sixty-three days from ovulation. Active labour, once straining begins, typically delivers a whole litter over three to twelve hours depending on numbers, and a very large litter can take longer. Nursing occupies six to eight weeks of intense metabolic demand, during which the bitch will often lose condition despite eating far more than usual. Full recovery of weight and coat commonly takes several months beyond weaning.
Success is a bitch who whelps without surgical intervention, recovers her weight within a few months, and shows no post-whelping infection or calcium crisis, alongside a litter where every puppy gains weight daily from the first day. It also includes something that happens long before: a mating chosen from two health-tested parents, so that the litter does not carry forward the conditions this breed is already struggling with.
The intervals that decide whether to call
Whelping problems are almost always identified by intervals rather than by dramatic events. Write these numbers on a card and put it on the whelping box, because nobody remembers them at three in the morning.
- Temperature drop: a fall in rectal temperature, typically to around ninety-eight degrees Fahrenheit or below, usually precedes labour within about twenty-four hours. Taking it twice daily in the last week gives you warning.
- Stage one: restlessness, panting, nesting and shivering, usually lasting six to twelve hours. No visible straining yet. If it exceeds about twenty-four hours without progressing, call.
- Strong straining without a puppy for more than thirty minutes is a veterinary call, not a wait.
- Weak intermittent straining for more than two hours without a puppy is equally a reason to call.
- More than two hours between puppies while others are known to remain is a reason to call, even if the bitch seems settled.
- Green or dark discharge before the first puppy arrives means the placenta has separated and needs immediate attention.
The question that comes before the pregnancy
Any honest page about Bernese reproduction has to start earlier than the pregnancy, because this breed carries an unusually heavy documented health load: hip dysplasia, elbow dysplasia, bloat, degenerative myelopathy, progressive retinal atrophy, histiocytosis, von Willebrand's disease, allergies, arthritis and cancer, alongside a seven to ten year average lifespan that is short for any breed and strikingly short for one of this size.
That means the decision to breed is a decision about what gets passed on, and it deserves more scrutiny in this breed than in most. Responsible Bernese breeding involves hip and elbow scoring, eye certification, cardiac evaluation and testing for the inherited bleeding disorder documented in the breed, in both parents, before any mating is considered.
One condition on that list has direct consequences for the whelping itself. Von Willebrand's disease is a bleeding disorder recognised in Bernese Mountain Dogs, and a bitch who carries it is at increased risk of haemorrhage during whelping and particularly during a caesarean section. Knowing her status beforehand changes how a surgical team prepares.
The practical implication is straightforward. If you are planning a litter, the testing happens months in advance and the results inform whether the mating goes ahead at all. If you have an unplanned pregnancy, tell your veterinarian immediately that the breed carries a documented clotting disorder, because that single piece of information affects how any emergency surgery is approached.
This is not a reason never to breed Bernese Mountain Dogs. It is a reason to do it deliberately.
The card on the whelping box did the work
Frieda was five and whelping her second litter. Her breeder had taped an index card to the side of the box with four intervals written on it, because during the first litter she had spent an hour talking herself into believing everything was fine. The first six puppies arrived over four hours without difficulty. Then Frieda settled, cleaned her puppies and appeared entirely content. The imaging count had shown nine. At an hour and fifty minutes with no further puppy, the card said what to do. The breeder rang the emergency service, described the interval, and was told to come in. Uterine inertia was diagnosed. Frieda was treated and delivered the remaining three with assistance. Because her von Willebrand status had been tested and was clear, the team could proceed without additional precautions. All nine puppies survived.
Key takeaway: A contented bitch settling with her puppies is not evidence that whelping has finished. Knowing the expected count and watching the clock are what turn an ambiguous night into a decision.
Frequently asked questions
How large is a typical Bernese litter?
Large breeds commonly produce sizeable litters, and Bernese litters in the high single figures are unremarkable. Larger litters increase the duration of labour, the metabolic drain on the bitch, and the likelihood that at least one puppy will need assistance, so litter size is worth establishing by imaging before whelping rather than counting on the night.
Is a caesarean common in this breed?
Less common than in breeds with disproportionate head or pelvic conformation. Bernese Mountain Dogs are structurally reasonably suited to natural birth. Caesareans in this breed are usually driven by labour that has stalled, by an oversized or malpositioned puppy, or by a very large litter exhausting the bitch, rather than by anatomy that makes vaginal delivery impossible.
What is eclampsia and when does it happen?
It is a dangerous fall in blood calcium caused by the demands of milk production, usually appearing in the first few weeks after whelping rather than during it. Signs include restlessness, panting, stiffness, tremors and progression to collapse and seizures. It is a genuine emergency and is more likely in bitches nursing large litters, which makes it relevant here.
Should I supplement calcium during pregnancy?
No, not without veterinary direction, and this catches people out because it seems protective. Calcium supplementation during pregnancy can interfere with the hormonal regulation that mobilises calcium during nursing and may increase rather than reduce eclampsia risk. Feed an appropriate diet and take advice rather than adding minerals independently.
What should I have ready before whelping?
The phone number of a twenty-four hour facility and the drive time, a thermometer, clean towels, unwaxed dental floss and scissors for cords, a scale for weighing puppies daily, and a written card of the labour intervals. Also have a plan for how you would move a hundred pound bitch in labour to a car, which needs two people.
How long does recovery take after whelping?
The bitch is under significant metabolic strain for the whole nursing period, typically six to eight weeks, and she will often lose condition despite eating a great deal. Full recovery of weight and coat frequently takes several months after weaning. In a breed with a shortish lifespan, that recovery period is a meaningful fraction of her adult life.
What are the signs of pregnancy complications in Berneses?
The early signs are set out in the sections above, and they are the reason to book a veterinary appointment rather than wait. Pregnancy Complications in Berneses is diagnosed by a vet, not from a symptom list, and the sooner it is on record the more options remain open.
Quick answers
View more answersHealth
Which inherited condition affects whelping in this breed?
Von Willebrand's disease, a bleeding disorder documented in Bernese Mountain Dogs, raises the risk of haemorrhage during whelping and caesarean surgery.
Health
Should I give calcium during pregnancy?
Not without veterinary direction. Supplementing during pregnancy can disrupt calcium regulation and may increase the risk of eclampsia after whelping.
Costs
What health testing should precede a Bernese litter?
Hip and elbow scoring, eye certification, cardiac evaluation and von Willebrand testing in both parents, arranged months before any planned mating.
Related DogBreedCompass guides
- von Willebrand's disease in Bernese Mountain Dogs – The inherited bleeding disorder directly affects surgical and whelping risk in this breed.
- hip dysplasia screening in this breed – Hip screening is a core part of any responsible breeding decision here.
- progressive retinal atrophy in Bernese Mountain Dogs – Inherited eye disease is part of the pre-breeding certification set.
- Bernese Mountain Dog breed profile – Anyone considering a litter should understand the breed's full health and lifespan picture.
- Bernese Mountain Dog costs – Pre-breeding testing and emergency caesarean are significant costs to plan for.
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