When do Baby Mice Open Their Eyes?

Although mice are not born blind, it takes some time until those little babies open their eyes. At around two weeks old, their eyes are going to slowly open. Mice have the same relatively bad eyesight throughout their lives.

The main role of their eyes is to detect movement from 45 feet away if necessary. They can’t see specific details. Their bad eyesight is rather complemented with their other senses. They have developed sophisticated hearing, smelling and also spatial orientation with their wiskers.

After birth, baby mice are vulnerable and they rely on the care of their parents. Fortunately, mice are very good parents and they take good care of their babies while their eyes are still closed. In this article, we will answer the most important questions related to baby mice.

How to Tell the Age of a Baby Mouse?

First, look at the eyes of the mouse and if they are closed and the baby has visible pink skin, then he is probably just a few days old. Another thing that characterizes a newborn mouse is that its paws seem like they are almost webbed.

The next phase is when their ears start to grow and appear as small nubs at first. When the baby mouse is around one-week-old, you can notice the definition of paws and claws. It is also around then when some fur will start to appear here and there.

We can say that a mouse covered with fur is more than one week old. It takes only about five days until you can notice some serious growth in their ears. In about one week, you can also notice some colored fur growing in the neck area.

Around the two-week mark, you can notice as the nipples of the female become more defined. Both genders start to grow their upper and lower incisor teeth as well. Around the four-week mark, mice have fully developed fur, teeth, eyes and nipples if we are talking about the females.

What do Baby Mice Eat when Their Eyes are Closed?

A newborn mouse basically can’t hear not see anything. Being so little, they fully rely on the care of their parents. In case their parents are not around, you are the one that has to take care of them while they are so helpless.

In an ideal situation, their mother is close so that the little babies can feel her warmth. This signals them that they are not far from their mother’s teats which will give them plenty of nutrition. Feeding them by hand is also an option.

From the day when they are born, they have to be fed in every two hours. You need to monitor the time and try your best to feed them every time without exception. Prepare the formula you are about to feed them, then give them about five minutes to consume it.

How do Baby Mice Have Good Eyesight?

It appears that mice are pretty good at orienting themselves in their environment, but how do they do it? After all, they have pretty bad eyesight to start with. On the other hand, newborn mice can’t even see because their eyes are closed.

It turns out that their ability to smell is much better than ours. Moreover, they rely on touching and the feeling of warmth near them can easily bring them to their parents. Once their ears develop, they start to rely a lot on their hearing too.

Can Baby Mice See in the Dark?

No matter the lighting conditions or whether your mouse is a baby or an adult, mice can’t see well in general. Their eyesight is blurry and it helps them distinguish between shapes while they can’t see fine details. They can follow movements that happen around them and that’s all.

In the dark, the situation is even worse but their other senses help them a lot in figuring out what is happening around them exactly.


We can conclude that baby mice are pretty helpless, which is why they rely so much on the care of their parents. They can’t see nor hear anything in the first two weeks, yet they need to be fed in every two hours. It helps them a lot to stay near their parents who are eager to defend and feed them.

They even sleep together, providing warmth and protecting them from the potential dangers lurking out there. If you have a few mouse babies but the parents are not there, you can raise them by yourself without a problem.

Just make sure that the temperature is warm enough in the room and feed them in every two hours. Before you know it, they will become strong and happy adult mice who are eager to play.

avatar Jane
Jane is an experienced animal care specialist with a focus on rodents and small mammals, with over 10 years of experience in the pet industry. Her articles provide practical guidance on choosing the right pet and managing common health issues. Jane is an advocate for animal welfare and supports organizations dedicated to protecting wildlife. read more...

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