Can wearing glasses on the top of your head cause indentations on your skull?

Wearing glasses on the top of your head can potentially cause temporary indentations or marks on the scalp, especially if the frames are tight or heavy. However, these indentations are usually superficial and not permanent. Prolonged pressure from heavy frames might lead to discomfort or skin irritation, but significant changes to the skull structure are unlikely. Regularly adjusting how you wear your glasses can help prevent any discomfort or marks.