What Is the White Substance Squeezed from Pores?
Aug 26, 2021
Source: Cainiu Health
Dr. Liu Yong
Introduction
What is the white substance that can be squeezed out of pores? When the opening of a hair follicle–sebaceous gland unit becomes blocked, the sebum normally secreted by the sebaceous glands cannot be effectively discharged onto the skin surface. As a result, it tends to accumulate and concentrate around the follicular orifice—i.e., within the sebaceous duct. Once sufficiently concentrated, this sebum forms a white sebaceous plug, which typically appears white when expressed.
The white substance expressed from pores is likely a sebaceous plug. When the opening of a hair follicle–sebaceous gland unit becomes obstructed, sebum—normally secreted by the sebaceous glands—cannot be effectively discharged onto the skin surface. Consequently, sebum accumulates and concentrates around the follicular orifice, i.e., within the sebaceous duct, eventually forming a white sebaceous plug upon sufficient concentration.
Sebaceous plugs typically reside around or beneath the follicular orifice; when external pressure is applied, the white plug ruptures through the previously blocked follicular opening and is expelled from the body. The expelled material usually appears white and often resembles tiny grains of millet in shape.
