1. endocrine disorders: endocrine disorders promote excessive sebum secretion and block hair follicles, creating a prerequisite for acne. The sebaceous glands of the skin have receptors for male hormones, and some people are sensitive to them, so if the secretion of hormones changes slightly, it will affect sebum secretion. Some women will find that acne germinates around the menstrual cycle, or when they stay up late and are stressed.
2. Abnormal keratosis of hair follicle: The upper stratum corneum of normal hair follicle mouth is thin and easy to fall off, thus ensuring smooth hair follicle mouth. On the contrary, the stratum corneum becomes thicker and is not easy to fall off, and sebum that flows out too late will block the hair follicle mouth and form acne. Excessive bacterial sebum will block pores, and the environment with less oxygen and more fat is conducive to bacterial reproduction and inflammation, especially before tension or menstruation, which will lead to transient acne.
3. Nervous system: Being too nervous or worried will stimulate the production of renal gland hormones, which can normally grow male hormones and stimulate the secretion of oil.
4. Sex hormones: Some women will have oily skin in adulthood, mostly because their sebaceous glands easily absorb male hormones and stimulate sebum secretion.
5. Food: Overeating, food accumulation in the body without enough digestive tract, indigestion, poor excretion of waste toxins, and hobbies for high-sugar drinks, fried foods and seafood will all lay the groundwork for acne.
6. Climate: The secretion of subcutaneous fat will naturally increase with the increase of external temperature, so the skin mixed in winter will become oily skin in summer.
7. Improper skin care products: oily skin care products are only suitable for the maintenance of dry skin. Otherwise, it will block hair follicles and make it difficult to excrete skin oil.