Underarm pimples extruding white stuff may be due to sebaceous cysts, generally due to the sebaceous gland ducts occurring blockage caused; in the treatment can be improved through surgery or laser way. 1. underarm acne squeeze out white things may be due to sebaceous cysts, also commonly known as acne, generally due to sebaceous gland duct blockage caused by the skin surface smooth pimples or lumps, the tip of the tip can be seen as a needle tip-like holes, with a hand squeeze can be seen in the white, scum, accompanied by foul-smelling material. 2. For the treatment of sebaceous cysts, it is recommended to remove the sebaceous cyst wall through surgery to prevent recurrence; in the case of sebaceous cysts without infection, laser treatment can also be chosen, but it is easy to recur. For patients with underarm acne and extrusion of white material, it is recommended to go to a regular hospital in time and follow the doctor’s instructions for standardized treatment.