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Bolognese
Toy breed from Bologna, Italy
Breed overview
Reviewed · Database recordAbout the Bolognese
The Bolognese is a small, stocky, and compact white toy breed with a long, fluffy, pure-white cotton-like coat, belonging to the Bichon family. It is known for its calm, devoted temperament and affectionate nature as a companion dog. Temperament traits include being calm, devoted, intelligent, playful, gentle, and loyal, though individual dogs may vary. The breed has a low energy level (score 2 out of 5) and is highly suitable for apartment living (score 5). Grooming needs are high (score 4), while shedding is minimal (score 1). Trainability is above average (score 4). Estimated adult weight ranges from 2.5 to 4 kg for both sexes, and estimated height ranges from 25 to 30 cm. Estimated lifespan is 12 to 14 years. Recognition status varies by registry.
Quick facts
Bolognese at a glance
Sizetoy
Breed groupToy
OriginBologna, Italy
Lifespan12–14 years
Male weight2.5–4 kilogram
Female weight2.5–4 kilogram
Male height25–30 centimetre
Female height25–30 centimetre
Origin and history
Where the breed comes from
The Bolognese is an ancient noble breed of the Bichon family, originating in Bologna, Italy. Its history dates to the 11th–12th centuries, and it was prized as a companion to royalty and aristocracy from the Roman era through the Renaissance, favored as a palace companion. The breed's exact origins are not fully documented, but it is known to have been a companion dog for centuries in Italian noble courts. The breed's name reflects its city of origin, Bologna. While it is recognized by some registries, recognition status varies, and specific dates of recognition are not provided.
Physical characteristics
Structured dataSize, build and coat
Female
2.5–4 kilogramAdult weight25–30 centimetreAdult heightCoat typesLongCoat colorsWhiteRecognitionvaries by registryData methodai assisted draft
Temperament
Typical breed tendencies
Calmdevotedintelligentplayfulgentleloyal
Breed tendencies are general guidance. Individual behavior depends on genetics, socialization, training, health and environment.
Exercise, training and maintenance
1–5 methodologyDaily care profile
Lower exercise demand
Typically responsive to training
Higher coat-maintenance demand
Lower shedding tendency
Family suitability
Home and household fit
Supervise every dog–child interaction.
Introductions and socialization still matter.
Exercise, enrichment and noise tolerance affect fit.
Climate suitability
Modelled tendency · medium confidence
Modelled tendency · medium confidence
Modelled tendency · medium confidence
A general morphology-based tendency. Individual dogs still require shade, shelter, water, acclimation and weather-appropriate activity. Method: climate-morphology-v1.
Health overview
Veterinary sources requiredHealth considerations
No Bolognese-specific screening programme or peer-reviewed disorder-prevalence study is currently attached to this profile. This is not evidence that the breed has no health risks. Owners should use routine preventive veterinary care and discuss screening appropriate to the individual dog's history, examination and family line.
Veterinary disclaimer: This profile is educational and does not replace examination, diagnosis or treatment by a veterinarian.
Feeding overview
Nutrition and feeding
Research in progress
Reviewed feeding guidance will appear after an approved source is imported and editorially reviewed.
Decision support
Potential advantages and challenges
Potential advantages
- Typically responsive to consistent training.Supported by trainabilityScore: 4
- Commonly described as loyal.Supported by temperaments.loyal: true
Potential challenges
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Growth chart
Bolognese puppy growth
Modeled estimates
Open interactive chart From puppy weight to adult size
Compare male and female growth, check weight by age and estimate mature size.
Adult male weight2.5–4 kilogramAdult female weight2.5–4 kilogramGrowth modeladult-range-size-model-v1
Preview only. Open the complete chart to adjust age, current weight and measurement units.
Frequently asked questions
Common questions
What is the size and lifespan of a Bolognese?
Estimated adult weight is 2.5 to 4 kg for both males and females. Estimated adult height is 25 to 30 cm. Estimated lifespan is 12 to 14 years. These are modelled estimates and may vary.
What is the temperament of a Bolognese?
The breed is described as calm, devoted, intelligent, playful, gentle, and loyal. However, individual dogs may not exhibit all these traits consistently.
How much exercise does a Bolognese need?
The breed has a low energy level (score 2 out of 5), so it requires minimal exercise. Short walks and indoor play are likely sufficient, but needs can vary by individual.
What are the grooming requirements for a Bolognese?
Grooming needs are high (score 4 out of 5) due to its long, fluffy coat. Regular brushing and professional grooming are likely needed to prevent matting. Shedding is minimal (score 1).
Is a Bolognese suitable for apartment living?
Yes, the breed scores 5 out of 5 for apartment suitability, indicating it is well-suited for small spaces. Its low energy level and calm temperament support this.
How does a Bolognese get along with children and other dogs?
Child suitability is rated 3 out of 5, suggesting moderate compatibility, but supervision is recommended. Dog compatibility is rated 4 out of 5, indicating generally good interactions with other dogs, though individual behavior varies.
Where does the Bolognese originate from?
The breed originates from Bologna, Italy, and is an ancient noble breed of the Bichon family. It was a companion to royalty and aristocracy from the Roman era through the Renaissance.
Data transparency
✓ Published · VerifiedSources and review status
APIThe Dog API ↗The Dog API Terms of Service (effective 2023-07-01)
VETERINARY SOURCEWSAVA Global Nutrition Guidelines and Toolkit ↗Copyright; factual citation and original summary only
Image source: The Dog API. Last reviewed 7/20/2026.