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Entry 917Filed under Breeding

Why Male Cats Have Nipples—and How Many to Expect

Male cats have nipples, usually eight in two rows along the belly. Their presence cannot identify a cat’s sex, but a new or changing lump should be checked by a veterinarian.
2-minute read By Animalso Team
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Yes. Male cats have nipples, just like female cats. Most cats have eight nipples in two rows along the underside of the belly, though they can be difficult to spot beneath the fur.

How many nipples do cats have?

Cats typically have eight nipples: four in each of two parallel rows running along the belly. Cornell’s Feline Health Center describes these as two mammary chains, with four glands and nipples on each side. Individual cats may vary, so eight is the usual arrangement rather than a rule for every cat.

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Cornell’s explanation of feline mammary anatomy attributes this description to Margaret McEntee, DVM, professor of oncology at Cornell University’s College of Veterinary Medicine.

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Can you tell a cat’s sex by its nipples?

No. Male and female cats both have nipples, and their presence or appearance is not a reliable way to determine a cat’s sex. Nipples are small and may be hidden by fur, especially when a cat is relaxed or lying down. To identify a cat’s sex, ask a veterinarian or another qualified professional to assess its anatomy rather than relying on the nipples.

When should a nipple or nearby lump be checked?

The presence of nipples on a male cat is normal and, by itself, is not a reason for concern. Male cats can rarely develop mammary tumors, and tumors can occur in either sex. PetMD notes that these tumors are most common in middle-aged and older female cats; VCA describes a mass beneath the abdominal skin, next to or within a nipple, as a common sign.

Contact a veterinarian if you notice a new or changing lump along either mammary chain. A description or photograph cannot establish whether a lump is a normal nipple or a medical problem, so leave diagnosis to a veterinary professional.

  • Look for a new lump or a change in one that was already present.
  • Note where it is and when you first noticed it, then share that information with the veterinarian.
  • Do not squeeze or try to treat the area at home.

For further information, see PetMD’s overview of mammary tumors in cats and VCA’s guide to mammary tumors in cats.

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