Wearing a helmet is generally not considered to be a cause of hair loss. While helmets wear may cause some minor irritation or discomfort, it is not likely to cause significant hair loss. Hair loss can be caused by a variety of factors, including genetics, medical conditions, certain medications, and stress. If you are experiencing hair loss and suspect that it may be due to wearing a helmet, it is a good idea to consult with a healthcare provider or a dermatologist for further evaluation and treatment. They can help to determine the cause of the hair loss and recommend appropriate treatment options.