they may have been sebaceous cysts (oil gland cysts). common in the earlobes especially during teen years.
i had firm spheres inside my earlobes. when i squeezed them they broke without any discharge or skin irritation. . i had recurring small somewhat crystalline-feeling spheres in my earlobes. when i would apply pressure before breaking them they almost felt like small glass balls. each time i broke them there was no pain nor was there any discharge or discoloration. . this happened at a time during my teenage years but after a year or two it just stopped. i have always been curious about the cause though. . thank you for your time.