Share. There’s an old wives tale that says wearing hats can lead to hair loss. Maybe it’s because so many balding men use hats to cover up their hair loss or because people think that hats have a negative effect on scalp circulation. But in truth, hats do not cause or contribute to hair loss.That means that you can continue to wear your dirtiest, smelliest baseball cap on a daily basis without it affecting the amount of hair on your head. Read on more about hats, hair loss, and effective treatment options.aybe it’s because so many balding men use hats to cover up their hair loss or because people think that hats have a negative effect on scalp circulation. But in truth, hats do not cause or contribute to hair loss.