Furry Diary

Standard-coat Mouse

Mus musculus

Also called Standard mouse, Smooth-coat mouse, Short-haired fancy mouse

VarietyShort profile

From The original, everyday coat of the fancy mouse, kept since ancient times and shaped into a show variety in Victorian England.1

At a glance the quick version

Length6 to 8 cm21
Lifespan1.5 to 3 years213
Sizetiny
Sleek, glossy, easy-care coat
Comes in a huge range of colours and markings
Lively and entertaining to watch
451

Coat and looks how to spot one

Standard: short, smooth and sleek

The classic fancy mouse coat: short, straight hair lying flat and close to the body, soft to the hand and naturally shiny. A good show coat is thick all over, right down to the belly, the groin, around the front legs and behind the ears. It sits on a slim, long body with large ears, bold eyes and a long tapering tail; show mice measure about 20-23 cm from nose to tail tip.415

Coloursany recognised colour or markingblackbluechocolatefawncreamsilverwhiteagoutitanfoxbandedbroken markedDutchHerefordvariegated54

Personality what they are like

Coat type has no effect on character, so these are typical fancy mice: lively, curious and happiest with mouse company. With calm, gentle handling close to the ground they settle well and seldom nip, and the AFRMA expects every show mouse to be easy to handle.135

Daily activity how busy a day looks

Busy and quick, most active at night and around dusk and dawn. Offer a solid-surface wheel, ropes, branches, tubes and tunnels, and scatter part of the food so they can forage.367

Grooming and care the hands-on bits

The short coat needs no brushing because mice groom themselves. Spot-clean daily, clean the cage fully every one to two weeks and check the water every day.67

Home where they are happiest

A roomy, escape-proof cage with bar gaps under 5 mm, at least 2 cm of dust-free bedding plus paper or hay for nesting, hides with more than one exit, a solid wheel and climbing items. Keep it well ventilated, out of draughts and away from heat.6

Food basics what goes in the bowl

Complete mouse nuggets as the main food, with small portions of vegetables and fruit counted into the daily amount. Scatter some of the ration for foraging and provide fresh water from a bottle, checked daily.7

Company who they like around

Sociable animals that do best in stable, same-sex groups. Females usually live together easily; males are best kept with brothers they grew up with. Avoid swapping members in a settled group.81

The story where it all began

Mice have been kept for their looks for millennia, with the earliest written mention in an ancient Chinese dictionary. The standard coat is the original one, and in 1895 Walter Maxey's National Mouse Club held its first show in Lincoln, England. Most fancy mice shown today still wear this coat.1

Fun facts for the dinner table

  1. 1

    Most fancy mice belong to the Standard coat variety.1

  2. 2

    The AFRMA standard wants the coat thick even in easy-to-miss places such as the groin, around the front legs and behind the ears.4

  3. 3

    The National Mouse Club held its first show in Lincoln, England, in 1895.1

  4. 4

    An ideal show mouse measures about 8-9 inches (20-23 cm) from nose to tail tip.5

Recognised by the official bits

American Fancy Rat and Mouse Association (AFRMA)
Recognised coat variety 'Standard': a smooth, glossy coat, fine to the touch, with a natural high shine and dense cover over the whole body.4
National Mouse Club (UK)
Founded in 1895; most of the colour and marking varieties it shows are standard-coated.1

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Standard-coat Mouse. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at support@furrydiary.app and we will fix it.

  1. Fancy mouse - Wikipedia en.wikipedia.orgused for weight, length, lifespan, temperament, social needs, coat variety overview
  2. MSD Veterinary Manual - Description and Physical Characteristics of Mice msdvetmanual.comused for weight, length, lifespan
  3. RSPCA - Mice rspca.org.ukused for lifespan, activity, handling
  4. AFRMA - Fancy Mice coat varieties afrma.orgused for standard coat wording and recognition
  5. AFRMA - Fancy Mice (standards and colours) afrma.orgused for general mouse standard, show length, variety list, colours, temperament requirement
  6. RSPCA - Mice environment rspca.org.ukused for housing, bedding, cleaning
  7. RSPCA - Mice diet rspca.org.ukused for diet, foraging
  8. RSPCA - Mice company rspca.org.ukused for social needs

Checked 2026-09-30. Text is written in our own words from these sources.