At a glance the quick version
Coat and looks how to spot one
Long hair: long, dense, fine and silky
A fancy mouse whose fur grows noticeably longer than the usual coat, giving a soft, fluffy look. Show breeders aim for hair that is as long as possible while still thick, with a fine, silky feel. The long coat can be paired with satin for extra shine.12
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.245
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.467
Grooming and care the hands-on bits
Mice groom themselves, so brushing is not needed. A clean, dry cage with fresh bedding helps the longer coat stay neat; spot-clean daily and fully clean every one to two weeks.61
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.82
The story where it all began
Long-haired mice are one of the coat varieties developed by mouse fanciers alongside the standard and satin coats. The AFRMA recognises both the Long Hair and the Long Hair Satin as separate show varieties.21
Fun facts for the dinner table
- 1
The show ideal is a coat as long as it can grow, but it must also stay dense, not thin and wispy.1
- 2
Combine long hair with the satin gene and you get the Long Hair Satin, a variety with its own AFRMA standard.1
- 3
Curly-coated Frizzie mice can carry long hair too.1
- 4
Long-haired mice can be standard or satin-coated underneath, just with longer fur.2
Recognised by the official bits
- American Fancy Rat and Mouse Association (AFRMA)
- Recognised varieties 'Long Hair' (coat as long as possible, dense, fine and silky) and 'Long Hair Satin' (the same with satin sheen).1
The care rhythm Furry Diary remembers it for you
A typical home-care rhythm for a Long-haired Mouse. It is our own starting plan, not a vet's advice, and you can change every line in the app.
- Spot cleanevery 2 days
- Full cleanevery week
- Nest refreshevery week
- Vet check-upevery year
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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.
- AFRMA - Fancy Mice coat varieties afrma.orgused for Long Hair and Long Hair Satin standards, recognition, Frizzie note
- Fancy mouse - Wikipedia en.wikipedia.orgused for weight, length, lifespan, temperament, social needs, coat variety overview
- MSD Veterinary Manual - Description and Physical Characteristics of Mice msdvetmanual.comused for weight, length, lifespan
- RSPCA - Mice rspca.org.ukused for lifespan, activity, handling
- AFRMA - Fancy Mice (standards and colours) afrma.orgused for general mouse standard, show length, variety list, colours, temperament requirement
- RSPCA - Mice environment rspca.org.ukused for housing, bedding, cleaning
- RSPCA - Mice diet rspca.org.ukused for diet, foraging
- RSPCA - Mice company rspca.org.ukused for social needs
Checked 2026-09-30. Text is written in our own words from these sources.