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Finding a baby rat inside your home or outside in your yard is a problem that should not be ignored. It’s a sign of a much larger (and damaging) rat infestation.

When born, baby rats, called pups, are the size of a jelly bean. They have no hair, are blind, and completely dependent on their mothers. Their fragility doesn’t last long. By three weeks old, they have fur, can see clearly, and are ready to join their more mature family members in your pantry or cabinets.

A baby rat indicates that a nest is nearby and an established infestation is present in your home. By six weeks old, that baby rat will be sexually mature and on its way to having a litter of its own. Many people don’t realize how many babies rats have. Rats can have a litter of 6 to 12 pups every 28 days, making them among the most reproductively successful creatures. What begins as just a couple of rats can explode into a thriving colony before you even realize they’re there. That’s why identifying the signs of a rat infestation early on is key.

The Differences Between Baby Rats and Mice

Though baby rats and mice look similar in many ways, size is the most reliable way for most homeowners to distinguish between the two. This is also true at the early stages of development. Even a relatively young rat is larger than an adult mouse, although if you’re not seeing them side-by-side, size may not be enough to make an identification.

A baby rat’s shape helps with identification. A baby rat’s head and feet are noticeably large for its body compared to those of mice, whose body parts are more proportional. However, it’s easy to distinguish a baby rat vs. a mouse by looking at their ears and tails. Mice have large ears compared to their heads, while rat ears are small. In addition, a mouse tail is thin and long with hair, while a rat’s tail is thicker, shorter, and hairless.

Rats and mice behave differently, too. Mice are more active and curious. They will explore their surroundings with more abandon than a baby rat that will stay close to the nest.

Even if you’ve correctly identified the infestation, a rodent infestation is a serious issue that requires immediate attention. Critter Control will not only confirm the identity of the rodent in your home, but also present you with a plan for rat or mouse removal and remediation.

Why Baby Rats Stay Near Homes

Baby rats stay near their nest not only because they are entirely dependent creatures but also because they are, by nature, cautious of their surroundings. For the first weeks of their life, a baby rat’s diet consists of its mother’s milk, like most mammals.

Rats have learned to live alongside humans over thousands of years because of the shelter, safety, food, and water they know they can access. The dark, secluded areas of our homes — attics and basements — provide them with a relatively safe and warm place to build their nests and raise their young. Our trash cans, pet food, pantries, and leaky faucets provide the food and water they need to thrive.

Risks of Baby Rats in Your Home

The most critical issue with seeing baby rats in your home is that their unseen parents are there too! It means there are many more babies and adults that you have not seen. Rats are nocturnal and do most of their damage at night. If baby rats are around, it means that you have an established infestation and more babies are on the way.

Health Risks

Baby rats pose the same serious health threats as mature rats. They contaminate the food in your pantry. Rat droppings, urine, and saliva carry diseases such as hantavirus, salmonella, plague, and leptospirosis, among others. Their nests also carry these diseases as well as parasites.

Property Risks

Baby rats quickly turn into mature rats that gnaw their way through your home, causing costly structural damage and safety concerns. Rats chew constantly. Rodents in the attic will gnaw on wood framing, insulation, stored items, plumbing, and electrical wires. Unfortunately, their damage often goes unnoticed until it becomes significant, as it happens out of sight in attics, wall voids, and basements.

Trust Critter Control With Rat Control

Rodents reproduce quickly. If residents discover a baby rat in the house, then an infestation has already begun. The longer rats remain in your home, the greater the risk of severe damage and health issues.

While some exterminators focus only on getting rid of the rats, Critter Control also provides effective remediation and restoration of your home. You can trust Critter Control for the humane and safe removal of rats in your home. In addition, Critter Control identifies and can eliminate the vulnerabilities in your home that allowed the rats to enter in the first place, such as sealing up gaps in windows and doors, and repairing loose roofing shingles. Critter Control will also identify aspects of your landscape that attract rats to your yard. Lastly, Critter Control will clean up nests, torn insulation, and more, sanitizing the infested area.

Contact Critter Control for a free inspection. With over forty years of experience and an office near you, you can count on us to remove the entire rat population in your home and prevent their return.

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JUAN OLAN profile picture
JUAN OLAN
16 October 2026
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excellent service and response.
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Joshua Rambo (Reaver236)
16 October 2026
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Spoke with Mike. He was very knowledgeable and professional and offered several methods to solve my issue. I would gladly call on him again.
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Nijole Snow
16 October 2026
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Very knowledgeable and professional. Did exactly as they said. Kept me updated on arrival times . I felt confident in their work.
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Jeff V. profile picture
Jeff V.
16 October 2026
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I will give Michael McGinty 5 stars as he was courteous and thorough. He was also quick to respond and come to assess situation. He checked problem area as well as checking the attic... We knew where squirrels entering but also going to fortify a couple obvious weak points (that I was already expecting to be addressed). I am very satisfied with the timeline to have everything completed! I will revisit and adjust rating after the job is complete depending on outcome (up or down)... I have seen many very positive reviews and photos as well as a few photos and poor reviews of shoddy work. I am hoping for a excellent resolution and Michael was very reassuring. Fingers crossed. A little expensive but had trouble with other companies and I want done now and their work comes with warranty!!!
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T Tarrant
16 October 2026
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Professional and created a plan that will prevent future problems.
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Howard Leist
16 October 2026
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Very personable and professional 😊‼️
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Sherri Levin
16 October 2026
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Fantastic service! I've used Critter Control in the past, and I'm pleased to say their service continues to be just as exceptional as I remember. Their professionalism, reliability, and commitment to quality are greatly appreciated. Highly recommend!
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Cathy Ols
16 October 2026
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Tracy at Critter Control is a F A N T A S T I C tech! For the past two years we’ve used Critter Control to trap and spray for raccoons that get too familiar. Tracy always arrives on time when scheduled and was an ace relocating two raccoons (so far🤞🏽) with care.
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Donna Pollen
16 October 2026
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Misty has been a wonderful contact. She has gone to great lengths to fix prior issues and has always responded to my texts immediately. She’s an asset to your company!
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Kevin Pittman profile picture
Kevin Pittman
16 October 2026
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Very responsive and accommodating to our needs and schedule. was able to get us on the schedule and someone out the same day we called to assess our house as we heard scratching over the weekend. had a technician out with a couple of days to start the process based on their assessment. very thorough and professional. will be using them for future services.
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