How Can You Determine a Hedgehog’s Age? A Complete Guide with Tips and Tricks!

Knowing a hedgehog’s age is crucial for several reasons. Firstly, it helps you provide the proper care and nutrition. As hedgehogs grow older, their dietary needs change, and they require different types of food. Knowing their age can help you determine when to make the necessary changes in their diet. Secondly, it helps you anticipate their future needs. As hedgehogs age, they become more prone to certain health issues, and knowing their age can help you plan for their health needs in advance.

Different Stages of a Hedgehog’s Life

Hedgehogs go through different stages of life, just like humans and other animals. Here are the three main stages of a hedgehog’s life cycle:


The infant stage of a hedgehog’s life starts from birth and lasts up to four weeks. Baby hedgehogs are born pink, hairless, and blind. They rely on their mother’s milk for nutrition during this phase.


The juvenile stage starts from the fourth week and lasts up to six months. During this stage, hedgehogs develop their spines and start exploring their surroundings. They also start to wean off their mother’s milk and start eating solid food.


The adult stage starts from six months and lasts up to four years. Hedgehogs reach full maturity during this stage and become sexually active. They require a balanced diet and proper care to maintain their health during this phase.

Physical Indicators of Age

There are several physical indicators of a hedgehog’s age that you can observe to determine their age. These include:


Hedgehogs have deciduous teeth that fall out and are replaced by permanent teeth. Baby hedgehogs have small, sharp teeth, while adult hedgehogs have larger, duller teeth.


Hedgehogs develop their spines during the juvenile stage. Baby hedgehogs have soft, flexible spines that harden and become rigid as they grow older.


Hedgehogs gain weight as they grow older. Baby hedgehogs weigh between 6-10 grams at birth, while adults can weigh up to 1 kg.


Baby hedgehogs are born with closed eyes that open after 14 days. Juvenile hedgehogs have bright, clear eyes, while older hedgehogs may develop cataracts or other eye problems.

Behavioral Indicators of Age

Observing a hedgehog’s behavior can also provide clues to their age. Here are some behavioral indicators of age:

Activity Level

Baby hedgehogs are less active and spend most of their time sleeping. Adult hedgehogs are more active and spend more time exploring their surroundings.


Baby hedgehogs are more timid and shy, while adult hedgehogs are more confident and curious.

Hedgehog Age Chart

Using a hedgehog age chart is one of the easiest ways to determine a hedgehog’s age. Here is an example of a hedgehog age chart:

Age (months) | Weight (grams)
———— | ————-
1 | 50-70
2 | 70-120
3 | 120-170
4 | 170-220
5 | 220-270
6 | 270-320
7 | 320-370
8 | 370-420
9 | 420-470
10 | 470-520
11 | 520-570
12 | 570-620

How to use the age chart

To use the age chart, weigh your hedgehog and compare their weight to the weight ranges on the chart. This will give you a rough estimate of their age.


Determining a hedgehog’s age is an essential aspect of providing proper care and nutrition. By observing physical and behavioral indicators and using a hedgehog age chart, you can estimate your hedgehog’s age and plan for their needs accordingly. Remember that hedgehogs are social animals and require regular interaction and attention from their owners. While hedgehogs can live alone, they prefer to have companionship. Providing a stimulating environment and socialization opportunities can help keep your hedgehog happy and healthy.

ThePetFaq Team