Maybe the hay is lasting longer than usual. Your guinea pig stays in their hideout at a time when they would normally be exploring. Or they do not come over when food arrives like they usually do. Small differences can be easier to spot when you know what is normal for your guinea pig. 

Guinea pigs are prey animals, so signs of illness or discomfort are not always obvious. Paying attention to their day-to-day habits can help you notice these changes sooner.   

Get Familiar With Their Everyday Patterns

Start with the routines you already notice each day.  Pay attention to when your guinea pig usually eats, when they are most active, where they tend to rest or hide, and how they normally respond when you approach or bring food.  

You do not need to track every movement. Focus on patterns around eating, drinking, activity, droppings, urination, movement, and how they use their space. These give you a useful point of comparison. 

Notice What Has Changed

If something catches your attention, think about what you normally see during that part of the day. Your guinea pig may be eating less, staying in one spot longer than usual, or moving differently. Write down what you notice and when it started. Keeping notes can help you identify patterns and give your veterinarian useful information if your guinea pig needs care. 

Know When to Reach Out

Changes in appetite, activity, movement, droppings, or urination are worth paying attention to. If your guinea pig is eating less, has stopped eating, or is producing fewer droppings than usual, contact a veterinarian promptly. Guinea pigs can become seriously ill when they are not eating, so changes in appetite should not be ignored. 

Share any notes, photos, or videos you have taken to help explain what you have noticed.  

Knowing what is normal for your guinea pig gives you a baseline to work from. By paying attention to their everyday habits, you may be able to better notice when something has changed and when to reach out for veterinary care.