What are the causes of dry skin and what causes it?

We know that the skin is our body’s first line of defense against external bacteria and viruses. It also plays a role in appearance. Moisturized and shiny skin will make people more confident. So what causes dry skin?

Reason 1: Ageing

It is one of the causes of dry skin. As estrogen levels in the body decrease, sebum secretion decreases and the skin's ability to retain moisture decreases, causing the skin to become drier and drier. This is also the reason why the elderly go to the dermatology department of the hospital for treatment in autumn and winter. Secondly, the stratum corneum on the surface of the skin contains a "natural moisturizing factor", the amount of which determines the water content of the skin. It is common among modern women to overuse skin care products, which can reduce the skin's ability to secrete oil and lead to dryness and dehydration.

Reason 2: Climate change

Changes in the external climate will cause abnormal secretion of sebaceous glands and sweat glands, making the skin surface rougher and the resistance weakened. Over time, you may become habitually dry.

Reason 3: Lack of sleep, fatigue, excessive weight loss and picky eating

Lack of sleep, fatigue, excessive weight loss and picky eating can cause considerable harm to the body and worsen blood circulation. When health is out of balance, the skin loses its vitality and becomes prone to dryness and roughness.

Reason 4: Taking a bath with too hot water, using harsh soaps or detergents

In addition, taking a bath with too hot water, using irritating soaps or detergents, or changes in female endocrine system, such as decreased estrogen secretion in women after menopause, can also cause dry skin. However, these are short-term phenomena and can be improved immediately.