Small Pets

Skinny Pig (Hairless Guinea Pig)

Cavia porcellus

Hairless, social, vitamin-C-dependent cuddler  ·  Intermediate

Skinny Pig (Hairless Guinea Pig)

Nerwign · CC BY 3.0 — Wikimedia Commons

Lifespan
5-7 years
Adult size
20-25cm; 700-1200g
Min. habitat
Min ~0.7m2 floor for a pair (e.g. 120x60cm), bigger better
Social needs
Highly social; must live with other guinea pigs
Diet
Herbivore; hay-based, needs added vitamin C
Time
Medium-high; warmth, feeding, daily care
Cost
Medium

Overview

  • Skinny pigs are a nearly hairless variety of domestic guinea pig, usually keeping only small patches of fuzz on the nose and feet.
  • They share the gentle, vocal, herd nature of haired guinea pigs but have extra needs created by their lack of coat: more warmth, more food, and careful skin care.
  • Like all guinea pigs they are strongly social and must never be kept alone.
  • Their hairlessness makes them more delicate and higher-maintenance, so they suit attentive owners rather than absolute beginners.

Housing

  • Provide a large, single-level cage with a solid floor and soft bedding such as fleece or paper-based substrate; for a pair, aim for at least about 0.7 square metres, and more is always better.
  • Avoid wire floors, which injure their feet.
  • Add hides and a hay rack, and keep the cage out of drafts and direct sun.
  • Because they lack insulating fur, ambient temperature is critical: keep them in a stable 20-24C range, never cold and never overheated, and provide soft warm hides.
  • Their bare skin also sunburns and dries out, so no direct sunlight.

Diet

  • Skinny pigs are herbivores that, like all guinea pigs, cannot synthesize vitamin C and will develop scurvy without a dietary source.
  • Feed unlimited grass hay as the staple, a measured portion of plain vitamin-C-stabilized guinea pig pellets, and a daily variety of fresh vegetables high in vitamin C, such as bell pepper.
  • Because hairless bodies burn more energy staying warm, skinny pigs often eat noticeably more than haired guinea pigs.
  • Provide constant fresh water and avoid sugary fruit and muesli mixes.
  • Never feed rabbit food, which lacks vitamin C.

Health

  • The classic guinea pig disease is vitamin C deficiency (scurvy), causing weakness, joint pain, and poor healing.
  • Hairless skin adds risks of sunburn, dryness, scratches, and fungal infections, so monitor and gently moisturize only if a vet advises.
  • Dental overgrowth, bumblefoot, and respiratory infections are also common.
  • They chill and overheat quickly, so temperature swings are dangerous.
  • Any guinea pig that stops eating needs urgent care, as gut stasis develops fast.
  • Regular weighing is the best early warning of illness.

Temperament

  • Skinny pigs are gentle, timid, and highly social, communicating with an endearing range of squeaks, purrs, and excited "wheeks" at feeding time.
  • They bond closely with cage-mates and, with calm regular handling, with their owners, often enjoying lap time and warmth given their need for heat.
  • As prey animals they startle easily and dislike sudden grabbing, so gentle, low handling builds trust.
  • They must live with at least one compatible guinea pig; a solitary guinea pig becomes lonely and stressed, which harms both behavior and health.

A good fit for

  • Owners wanting an affectionate, vocal small pet
  • Keepers able to maintain a warm, stable room
  • Homes that will keep a bonded pair or group
  • People diligent about vitamin C and diet

Common mistakes to avoid

  • Keeping a single guinea pig alone
  • No supplemental vitamin C (scurvy)
  • Cold drafts or overheating on bare skin
  • Sunburn, dryness, and wire-floor foot injuries

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