# Dog C-section: why it is done, which breeds and recovery

> What a dog C-section is, the difference between a planned and an emergency one, the breeds with the highest rates, how timing is set after ovulation, and what recovery involves.

Canonical: https://lucernel.com/guides/dog-c-section
Last updated: 2026-10-19

Type: Guide. Publisher: Lucernel.

## Short answer

A dog C-section is surgery to deliver puppies through the abdomen. It is either planned ahead, because of the breed, a past problem or a known risk, or done in an emergency when labor stalls or the mother or puppies are in trouble. Merck says a planned one can be done safely after day 62 of pregnancy, and knowing when she ovulated is what makes that date trustworthy. Your vet decides, and your vet gives the after-care.

- **Choose this if:** Write down the mating dates, any progesterone results and your vet’s emergency number before the last two weeks of pregnancy.
- **Choose the other option if:** Call your vet at once if labor stalls, she strains hard with no puppy, or the discharge turns black-green or bloody.

## Side by side

| | Notebook and calendar | Littero |
| --- | --- | --- |
| Keeps mating dates and progesterone results | Partly, in separate places | Yes, with a progesterone chart |
| Shows an expected whelping window | Partly, if you work it out yourself | Yes, as a range with its uncertainty |
| Reminds you of vet visits and whelping | Partly, with calendar alerts | Yes, key dates for tests, vet visits and whelping |
| Records each puppy and its weigh-ins | Partly, by hand | Yes, each puppy from birth |
| Gives the vet a report | No, loose pages | Yes, exports for your vet and your records |
| Decides whether a C-section is needed | No, your vet does | No, it keeps records and does not monitor labor |

## Planned and emergency C-sections

A cesarean section, or C-section, is surgery in which the vet removes the puppies through an incision in the abdomen and the uterus. A planned (elective) one is scheduled before labor starts. An emergency one is done when a delivery cannot go on safely.

Merck’s veterinary manual puts the overall rate of difficult labor, called dystocia, at about 5% of pregnancies, though it may approach 100% in some breeds, especially short-nosed and short-legged types. Many difficult labors are handled with medication first, and a C-section is the next step when that fails or when an obstruction, fetal distress or illness in the mother rules it out.


## When labor turns into an emergency

Merck lists the indications for a C-section that apply once labor has begun. They include strong contractions for more than 30 minutes with no puppy, labor that does not respond to medical treatment, a birth canal or fetus that does not fit, a puppy that cannot be repositioned, and a black-green or heavily bloody discharge before delivery.

Merck’s owner pages give timing rules that should send you to the clinic: no birth within 24 hours of a drop in rectal temperature below 100°F, strong contractions for more than 1 to 2 hours with no puppy, a rest of more than 4 to 6 hours during labor, obvious pain, or abnormal discharge. Our whelping guide goes through the normal stages. Do not give oxytocin or calcium yourself, because Merck says neither should be given without a veterinarian’s advice.


## Breeds with the highest C-section rates

The best known figures come from a 2010 study by Evans and Adams in the Journal of Small Animal Practice. It used a 2004 UK survey of breed club members that covered 13,141 females and 22,005 litters from 151 breeds. The ten breeds with the highest rates were the Boston terrier, bulldog, French bulldog, mastiff, Scottish terrier, miniature bull terrier, German wirehaired pointer, Clumber spaniel, Pekingese and Dandie Dinmont terrier. In the first three, more than 80% of litters were born by C-section.

Read the figures with care. The data are owner-reported, come from UK breed club members, and describe litters from the 10 years before 2004, so today’s rates in your breed may differ. A 2019 study of 701 dystocia cases at UK emergency clinics found that short-nosed (brachycephalic) females had 1.54 times the odds of a C-section compared with other dogs, and that bulldogs had the highest odds. Those were emergency cases, and 12 of the 701 died during emergency care.


## Planning one: timing, progesterone and checks

Puppies born too early cannot be helped reliably, because the lung surfactant they need is not dependable before the end of pregnancy. Merck says elective C-sections can be done safely after day 62 of gestation, and that the date should come from ovulation timing, since breeding dates do not match whelping dates closely. Progesterone tests are how ovulation is usually timed.

Your vet may confirm that the puppies are ready by X-ray or ultrasound, which also give the count. Merck says fetal teeth become visible at term and can help when dates are vague. Merck also notes that a vet may give a drug to help fetal maturation before an elective C-section, and that milk production should be checked first. These are decisions for your vet.

Practical advice from us: ask your vet in the first half of pregnancy whether a planned C-section is likely for your dog, who will do it, and which emergency clinic to use at night. Merck adds that having a C-section once does not mean every later litter needs one.


## Recovery after a C-section

Follow the discharge instructions from your clinic. Merck says that after any delivery the mother’s temperature, vaginal discharge and milk should be monitored. Normal discharge after birth is dark red to black and heavy for the first few days.

Puppies should be weighed once they are dry and then twice a day for the first week. Merck says any weight loss after the first 24 hours needs prompt attention, and newborns should gain about 10% of their body weight each day. Merck notes that removing the uterus and ovaries at the time of a C-section prolongs anesthesia and delays nursing, so ask your vet beforehand whether that is planned and how the puppies will be fed in the first hours.

Call your vet if she has a fever, seems depressed, has a pus-like discharge or heavy bleeding, or if her mammary glands look hot or painful. Merck lists uterine infection, breast infection and low blood calcium as problems of the weeks after birth.

For the incision, Texas A&M’s veterinary college advises checking it every day. Redness or swelling that is getting worse, or cloudy, yellow or green drainage, is a reason to call. Keep her from licking or scratching it, which a cone or a shirt can do, and follow your vet’s limits on activity, which depend on the surgery.


## What to keep on record

A C-section is easier to plan, and easier to explain to a new vet, when the facts are in one place. Keep the mating dates, each progesterone result and the ovulation date your vet worked out, the X-ray or ultrasound count, the day of surgery, the number of puppies, and each puppy’s weight.

That record also answers the next question, whether the next litter is likely to need one too. It belongs with the dam’s file, along with her health tests and what the vet said.



Disclosure: Littero is made by Lucernel, the publisher of this article.

## Frequently asked questions

### How many days pregnant is a dog for a planned C-section?

Merck says elective C-sections can be done safely after day 62 of gestation, because earlier the puppies’ lung surfactant is not reliably present. Pregnancy lasts about 62 to 64 days, and your vet picks the day from ovulation timing.

### Which dog breeds most often need a C-section?

In a 2010 UK study, the Boston terrier, bulldog and French bulldog had C-section rates above 80% of litters, followed by the mastiff, Scottish terrier and others. The data are older and owner-reported.

### How common is a difficult birth in dogs?

Merck puts dystocia at about 5% of pregnancies overall, and close to 100% in some short-nosed and short-legged breeds.

### Does a dog that had a C-section always need one again?

No. Merck says a C-section does not invariably mean she needs one at later litters, but your vet decides each time.

### Is Littero available?

See the official app page for current availability and pricing.

## Our pick: Littero, the dates before surgery and the record after

A planned C-section depends on dates: when she was mated, when ovulation was confirmed, when the window opens. Littero keeps the mating dates and progesterone results with a chart, shows the expected whelping window as a range, reminds you of tests, vet visits and whelping, and keeps each puppy from birth with its weigh-ins. It records and does not monitor labor, so your vet stays your first call.

- Mating to whelping as an editable date range
- Progesterone results with a chart, and reminders for vet visits
- Each puppy from birth with weigh-ins, and exports for your vet

[See how Littero works](https://lucernel.com/apps/littero)

## Sources (checked 2026-10-01)

- [Evans and Adams (2010), Proportion of litters of purebred dogs born by caesarean section, Journal of Small Animal Practice (PubMed)](https://pubmed.ncbi.nlm.nih.gov/20136998/)
- [O’Neill et al. (2019), Canine dystocia in 50 UK first-opinion emergency care veterinary practices, Veterinary Record (PubMed)](https://pubmed.ncbi.nlm.nih.gov/30718270/)
- [Texas A&M College of Veterinary Medicine: Confidently caring for pets after surgery (Pet Talk, 2022)](https://vetmed.tamu.edu/news/uncategorized/pets-after-surgery/)
- [Merck Veterinary Manual: Dystocia in small animals](https://www.merckvetmanual.com/reproductive-system/reproductive-diseases-of-the-female-small-animal/dystocia-in-small-animals)
- [Merck Veterinary Manual: Whelping and queening in bitches and queens](https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/whelping-and-queening-in-bitches-and-queens)
- [Merck Veterinary Manual: Periparturient problems in bitches and queens](https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/periparturient-problems-in-bitches-and-queens)
- [Merck Veterinary Manual: Pregnancy determination in bitches and queens](https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/pregnancy-determination-in-bitches-and-queens)
- [Merck Veterinary Manual (pet owner version): Management of reproduction in dogs](https://www.merckvetmanual.com/dog-owners/reproductive-disorders-of-dogs/management-of-reproduction-in-dogs)
- [Merck Veterinary Manual (pet owner version): Reproductive disorders of female dogs](https://www.merckvetmanual.com/dog-owners/reproductive-disorders-of-dogs/reproductive-disorders-of-female-dogs)