Not all guinea pigs are built the same. Some have sleek, short coats that rarely need trimming, while others are long-haired beauties who need regular grooming to stay comfortable. Then there are piggies like Max – a short-haired guinea pig with a long-haired “bottom end.” This unique mix means his coat is easy to manage on top, but grows long, fluffy, and prone to problems around his rear.
For guinea pigs like Max, regular “bum trims” are essential.
What is a Bum Trim?
A bum trim is exactly what it sounds like – carefully trimming the long hair around your guinea pig’s bottom, legs, and underside to keep them clean and comfortable. It’s not a full haircut, but a tidy-up focused on the rear end.
This grooming step can be vital for certain piggies, especially:
- Long-haired breeds such as Peruvians, Shelties, or Texels
- Mixed-breed guinea pigs with long patches of hair
- Older or less mobile piggies who struggle to keep themselves clean

Why Bum Trims Are Important
Hygiene and cleanliness
Long hair can trap urine and faeces, leading to matting and discomfort. Over time, this can cause painful skin irritation and even infections.
Preventing flystrike
In warmer months, dirty or damp fur around the bottom can attract flies. Flystrike is a medical emergency in guinea pigs and rabbits, and prevention is always better than cure.
Comfort and mobility
Tangled or matted fur makes it harder for guinea pigs to move around comfortably. A quick trim can keep them light, free, and happy.
Easier health checks
Keeping the rear end tidy makes it easier for owners to spot early signs of problems, such as sore skin, parasites, or abnormal discharge.
How Often Should You Trim?
The frequency depends on your guinea pig’s coat type and growth rate. For most long-haired or mixed-coat piggies, every 3–4 weeks is a good routine. Always use small, blunt-ended scissors and handle your guinea pig gently, ideally with a second person holding them securely.
If you’re unsure or nervous, your vet or an experienced groomer can show you how to safely trim.
Max’s Story
Max is a perfect example of why bum trims matter. His coat is mostly short-haired and easy to manage, but the longer fur around his bottom can quickly become messy if not maintained. With regular bum trims, he stays clean, comfortable, and full of personality – showing how a little grooming goes a long way in keeping piggies healthy.
Final Thoughts
Every guinea pig deserves to live clean, comfortable, and stress-free. If your piggy has long or mixed coat features, adding regular bum trims to your care routine is one of the simplest but most important steps you can take.
For more advice on guinea pig care and to explore our range of natural forages and treats, visit: https://www.guineagourmettreats.co.uk
Helpful Links and Resources
RSPCA – Guinea Pig Care and Grooming: https://www.rspca.org.uk/adviceandwelfare/pets/rodents/guineapigs
Guinea Pig Magazine – Grooming Tips: https://www.guineapigmagazine.com
Blue Cross – Guinea Pig Health and Welfare: https://www.bluecross.org.uk/advice/guinea-pig
PDSA – Guinea Pig Care Guide: https://www.pdsa.org.uk/pet-help-and-advice/looking-after-your-pet/small-pets/guinea-pigs
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