Question: how do you know when you need to replace running shoes?
Answer: You have new aches and pains. If you notice that your ankles, knees or hips get more achy after a run, it might be time to get a new pair of shoes. ...  Your feet get extra sore after a run. ...  The treads are worn out. ...  The midsole feels tough. ...  You keep getting blisters or brush burn.