I wear a baseball cap a lot. Does wearing a hat cause baldness?
A. Not unless it was tight enough to cut off the circulation of your scalp and head (in which case, thinning hair may be the least of your problems). If you do wear a hat, be sure it “breathes” allowing air to reach your scalp and is not so tight as to be uncomfortable. Hair loss is genetic, so if your father had thinning hair and wore a cap all the time, it is more likely you are losing your hair from his genetic pattern than you are his habit of wearing a hat.