Why your dog won’t go outside

If I put the leash on my dog, she will go outside with me. If I don’t put a leash on her, then the matter how much I call her she won’t go outside.
You were leaving information out about the situation. Do you take her out always the same way? Has something changed? Has the weather changed? Tell a complete story about what changed in your behavior and maybe we will be able to understand the dog better