Male vs. Female French Bulldogs

Eduarda Piamore
By Eduarda Piamore, Expert in canine and feline psychology, education and training.. March 27, 2024
Male vs. Female French Bulldogs
French Bulldog

Animal file: French Bulldog

French Bulldogs, or "Frenchies" as they're affectionately known, have captured hearts worldwide with their playful personalities. But before welcoming one of these pups into your home, it's important to understand the subtle differences between male and female French Bulldogs in order to make an informed decision.

That's why the following AnimalWised article delves into the differences between male and female French Bulldogs, along with their respective advantages and disadvantages.

You may also be interested in: Male vs. Female Pitbull Differences


  1. Physical differences between male and female french bulldogs
  2. Behavioral differences between male and female french bulldogs
  3. Other differences between male and female French bulldogs
  4. What is better, male or female French bulldog?

Physical differences between male and female french bulldogs

Many new French bulldog owners often wonder how to differentiate between males and females, particularly when they've just adopted a puppy. One of the easiest ways to determine the sex is by observing the physical characteristics, as there are distinct morphological differences between males and females.

At a young age, one of the most noticeable differences is in the genital area. Female French bulldogs have a visible vulva, while male puppies typically have descended testicles by the second or third week of life. Delayed descent of testicles beyond six months may indicate cryptorchidism.

Additionally, male French bulldogs generally have a taller and more robust body build compared to females.

According to standards set by the International Cynological Federation (FCI), male French bulldogs typically measure between 27 cm and 35 cm (10.6 inches to 13.8 inches) at the withers and weigh between 9 kg and 14 kg (20 lbs to 31 lbs).

Female French bulldogs, on the other hand, typically stand between 24 cm and 32 cm (9.4 inches to 12.6 inches) at the withers and weigh between 8 kg and 13 kg (18 lbs to 29 lbs).

Male Frenchies usually have larger heads and broader skulls compared to females. Their skulls may also be more square-shaped. Furthermore, males may have thicker necks than females, giving them a more masculine appearance.

It's important to note that variations in coat color and pattern are determined by genetics rather than sex. While the FCI mentions fawn or fawn brindle as acceptable colors, the AKC allows for more flexibility, including colors like white, cream, and various shades of fawn.

Male vs. Female French Bulldogs - Physical differences between male and female french bulldogs

Behavioral differences between male and female french bulldogs

Contemporary understanding suggests that a dog's behavior is heavily influenced by environmental factors such as upbringing, education, and life experiences rather than solely genetics like breed and lineage.

Recent studies indicate that less than 10% of behavioral variations in dogs can be attributed to genetics. Hence, behavioral disparities between male and female French bulldogs often stem from their individual upbringing rather than their genders.

Both male and female French bulldogs are renowned for their playful, docile, and sociable demeanor, making them excellent companion animals. They thrive on affection from their owners and typically interact well with children and other pets. However, extended periods of solitude may predispose them to behavioral issues like separation anxiety or depression.

However, it is important to note that some owners report that females can be more independent and territorial, while males may be more affectionate and eager to please.

To prevent possessive or jealous behavior, particularly towards their guardians or family members, proper socialization is crucial. Ideally, socialization should commence before the dog reaches its third or fourth month of life, marking the end of the sensitive socialization phase in dogs.

Male vs. Female French Bulldogs - Behavioral differences between male and female french bulldogs

Other differences between male and female French bulldogs

One notable difference between male and female French bulldogs lies in their reproductive cycles, commonly referred to as "heat."

This cycle typically begins when the dog reaches sexual maturity, which is estimated to occur around 6 to 8 months of age for French bulldogs. However, the exact timing of the first heat can vary due to individual factors. Generally, males may take slightly longer than females to become sexually active.

Let's delve into the specific differences in heat cycles between male and female bulldogs:

  • Males: after reaching sexual maturity, male French bulldogs are usually receptive to mating throughout the year and for most of their lives.

  • Females: female dogs undergo a more structured heat cycle, consisting of four phases: proestrus, estrus, diestrus, and anestrus. During estrus, which is the fertile period, females become receptive to males. Typically, female French bulldogs experience two heat cycles per year, lasting 15 to 21 days each, with estrus typically lasting 6 to 9 days. A female French bulldog can give birth to up to four puppies per litter.

Symptoms of heat differ between male and female dogs. While both sexes may exhibit restlessness and increased sexual behaviors such as marking and mounting, only female dogs will display typical signs of estrus, including vaginal bleeding, redness, and swelling of the vulva.

Want to delve deeper into French Bulldog litter sizes? Check out our article exploring how many puppies a Frenchie can have.

What is better, male or female French bulldog?

When deciding between a male or female French bulldog, it's important to consider various factors beyond just their sex. While understanding the differences between males and females can help inform your decision, prioritizing knowledge of French bulldog care is crucial for ensuring their well-being.

French bulldogs are prone to several health issues, many of which are linked to their brachycephalic condition and genetic background. These may include breathing difficulties, snoring, brachycephalic syndrome, heat sensitivity, allergies, and skin conditions. Managing these health concerns often requires significant investments in preventive care and veterinary treatments.

For female French bulldogs, pregnancy and delivery present additional considerations. Due to their brachycephalic anatomy, females typically require cesarean sections to safely deliver puppies. This surgical procedure can be costly, particularly if complications arise.

Neutering, or castration, is generally recommended for both male and female French bulldogs. While the procedure may be more complex and expensive for females, it offers numerous health and behavioral benefits for both sexes.

When choosing between a male or female French bulldog, it's essential to consider their unique care requirements, potential health issues, and the financial implications of veterinary care, including surgical interventions like cesarean sections and neutering.

Before welcoming your Frenchie home, be sure to read this other article on the most common French Bulldog health issues.

Male vs. Female French Bulldogs - What is better, male or female French bulldog?

If you want to read similar articles to Male vs. Female French Bulldogs, we recommend you visit our Comparisons category.

  • AKC. French Bulldog Breed Information and Standards . Available for consultation (in English):
  • FCI. Standard nº101: Bouledogue Français/French Bulldog . Available for consultation (in English or French):
  • Morrill, K. et al. (2022). Ancestry-inclusive dog genomics challenges popular breed stereotypes. Available for consultation at:
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Male vs. Female French Bulldogs