Do Guinea Pigs Have Belly Buttons? A Quick Fact Check!

do guinea pigs have belly buttons

One question that often arises among guinea pig owners is whether these charming rodents have belly buttons like their human companions.

Yes, guinea pigs do have belly buttons. However, they may not always be visible and they certainly aren’t as visible as they are in humans. In fact; based on this, guinea pigs have two types of belly buttons called innies and outies.

It’s essential to remember that guinea pigs are delicate creatures, and care should be taken not to cause any harm or stress while trying to locate their belly button. It is best to approach them gently and calmly, ensuring that they feel safe and comfortable during the process.

In this article, we delve into the anatomy of guinea pigs to answer this intriguing query.

Do Guinea Pigs Have Belly Buttons?

Yes, guinea pigs do have belly buttons, but they might not be as obvious as those on humans.

Belly buttons, also known as umbilical scars or navel, are the result of the connection between a mammal and its mother during gestation through the umbilical cord. The umbilical cord provides nutrients and oxygen to the developing fetus. After birth, the umbilical cord is severed, leaving behind a small mark or scar, which becomes the belly button.

In guinea pigs, the belly button is a very small and almost unnoticeable scar. It is located on the abdomen, just like in humans.

However, due to their dense fur and small size, it can be challenging to locate their belly button. To find it, one may have to gently part the fur around the abdomen area and look for a small, round, or oval-shaped scar.

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Understanding the Umbilical Cord in Guinea Pigs

guinea pig in a hay

Development of Umbilical Cord

In guinea pigs, as in other mammals, the umbilical cord plays a crucial role in the development of the fetus. The umbilical cord connects the fetus to the mother’s placenta, allowing the exchange of nutrients, oxygen, and waste between the mother and the developing baby.

During the gestation period, the umbilical cord grows with the fetus, providing essential support for the baby’s development. The formation of the umbilical cord in guinea pigs begins early in the pregnancy, and its structure is similar to that found in other mammals.

It comprises two arteries and one vein, which are encased within a protective gelatinous substance called Wharton’s jelly. This unique structure enables the efficient transfer of nutrients and oxygen while protecting the developing fetus.

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The Severing of Umbilical Cord

The severing of the umbilical cord in guinea pigs occurs shortly after birth. Once the mother guinea pig has given birth to her pups, she will instinctively sever the umbilical cord using her teeth. This process is essential for the newborn pups to function independently and transition to life outside the womb.

After the cord is severed, the remaining portion on the pup’s abdomen gradually dries out and falls off within a few days, leaving a small scar that resembles a belly button. However, the appearance of this scar is less distinct and more subtle than the belly button on a human.

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Types of Belly Buttons in Guinea Pigs

do guinea pigs have belly buttons

Guinea pigs’ belly buttons are not as easily recognizable as those of humans. Here are the different types of belly buttons observed in guinea pigs:

Innies in Guinea Pigs

Innie belly buttons in guinea pigs are the most common type. This is because guinea pigs have a small and shallow belly button, which is covered by fur.

The innie belly button is usually not visible to the naked eye and can be identified only by feeling the abdominal area with gentle pressure. It is typically a small indentation and lacks any noticeable protrusion.

This type of belly button is formed when the umbilical cord is detached from the newborn guinea pig, and the remaining tissue heals inward. Innies generally do not cause any health issues and, as long as the guinea pig is healthy, will not require any special care or attention.

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Outies in Guinea Pigs

Outie belly buttons in guinea pigs are less common but can still occur. In these cases, the belly button will appear as a small bump on the abdominal area instead of an indentation.

This occurs when the tissue from the detached umbilical cord heals outward rather than inward. Outies can also be covered with fur, making them harder to detect.

While an outie belly button is not inherently harmful to a guinea pig’s health, it can, in some instances, indicate the presence of an umbilical hernia. This is a condition where a small portion of the abdominal contents, such as fat or intestines, protrudes through the weakened umbilical area.

If you suspect your guinea pig has an outie belly button and shows signs of discomfort or pain, it is essential to consult a veterinarian for examination and treatment, if necessary.

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Caring for a Guinea Pig’s Belly Button

Taking care of your guinea pig’s belly button is important to maintain its overall health and hygiene. This section outlines the necessary steps for properly caring for a guinea pig’s belly button.

Cleaning and Monitoring

Regularly inspect your guinea pig’s navel area during grooming or cleaning sessions. Gently part the fur around the belly button to ensure that it is clean and free from dirt or debris. If necessary, use a damp cloth or cotton ball to gently clean the area, taking care not to apply too much pressure.

Keep an eye out for any signs of redness or irritation around the belly button, as these could indicate the presence of unhealthy conditions. Contact your veterinarian immediately if you notice any abnormalities or signs of infection.

Potential Health Issues

Guinea pigs’ belly buttons can be susceptible to infections and other health issues. Here are some potential problems to be aware of:

Umbilical hernias

These are rare but can occur in guinea pigs. An umbilical hernia is a bulge near the belly button that may be visible or palpable. If you suspect your guinea pig has a hernia, seek veterinary attention promptly.


Belly button infections are not common in guinea pigs but can occur if the area is not properly cleaned. Keep the belly button area clean and dry to prevent bacterial growth. If the area appears swollen, red or has a discharge, consult your veterinarian for further treatment.

By regularly inspecting and cleaning your guinea pig’s belly button, you can ensure that they maintain a healthy state and avoid any potential health issues. Always consult your veterinarian if you have concerns about your guinea pig’s health or hygiene.

Conclusion – Do Guinea Pigs Have Belly Buttons?

Yes, guinea pigs do have belly buttons – but not in the same way that humans do. They usually have a small scar resulting from the severing of the umbilical cord, which serves a similar purpose in marking the location of the former connection to the mother.

Guinea pigs’ belly buttons can be classified as either innies or outies. A healthy guinea pig’s belly button typically does not require any special care or attention. However, monitoring any changes in your pet’s abdominal area and seeking professional help if concerned is always recommended.

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