Why does it get more itchy the more I scratch?

Many friends find that their bodies are itchy, and the more they scratch, the more itchy they become. At the beginning, most friends do not pay much attention to it, but over time, the skin will become red and swollen. At this time, it will not be easy to treat. Therefore, friends must first understand the cause and treat it in time, so that the effect will be better.

Itchy skin in autumn and winter is caused by dryness

As the temperature drops, the human body partially closes the capillary bed of the skin in order to reduce heat dissipation, the blood flow to the skin decreases, the secretion of sweat and sebum also decreases, the humidity of the skin decreases, and the skin becomes dry, which is more likely to cause itching of the skin.

In addition, for a large number of young people, especially white-collar workers and young children, daily bathing has become a compulsory course for them, and some even bathe 2 to 3 times a day. The result is that the sebum, which is originally secreted in small amounts, is washed away, making the skin drier and more prone to itching.

Some diseases can also cause skin itching

There are many causes of skin itching, among which metabolic disorders and endocrine abnormalities are one of the important causes of skin itching. Many diseases can cause itchy skin symptoms by changing the body's normal metabolism.

Here are some common causes of itchy skin:

Senile skin metabolic disorders: The skin of the elderly atrophies and lacks sebum to moisturize, blood circulation to the skin is impaired, and nutrition is deficient. They are easily stimulated by changes in temperature in the surrounding environment, which induces itching, which is called senile skin pruritus. Therefore, pruritus in the elderly is mostly caused by malnutrition of the skin. The disease can occur throughout the year.

Hormone levels: The decrease in hormone levels in the elderly, such as sex hormone levels, is also one of the causes of itching. Such as itchy skin in women during menopause.

Diabetes: Due to the absolute or relative reduction of insulin, diabetic patients suffer from disorders in the metabolism of sugar, fat and protein, which makes pyruvate unable to be completely oxidized. Pyruvate and lactic acid accumulate in the nerve tissue, causing multiple neuritis. The patient's skin is prone to dryness, and the patient has abnormal sensations such as itchy skin or crawling insects. About 7% of diabetic patients suffer from generalized or localized skin itching.

Thyroid dysfunction Hyperthyroidism and hypothyroidism can also cause skin itching. Skin itching during hyperthyroidism may be caused by increased basal metabolism, excessive sweating, and mental stress. The generalized itching caused by hypothyroid myxedema is mostly related to dry and scaly skin.

The skin of patients with chronic renal insufficiency-uremia loses its luster, becomes dry and flaky. After urea is excreted from the sweat glands, it condenses into urea frost, which irritates the skin and can cause uremic dermatitis, making the patient feel extremely itchy. At the same time, the increase of parathyroid hormone in the patient's body is also a cause of skin itching.

Skin itching in pregnant women. Healthy pregnant women may experience systemic skin itching in the middle and late stages of pregnancy, mostly due to bile stasis in the body, which is clinically called intrahepatic cholestasis of pregnancy. In addition, pregnant women often experience itchy abdominal skin in the late stages of pregnancy. This is due to stretch marks caused by excessive stretching of the abdominal wall and stimulation of the sensory nerve endings of the abdominal wall. It is not caused by cholestasis. The symptoms are often mild and do not require treatment.

When facing the complicated manifestations of stubborn itching, especially senile itching, we should be vigilant and self-identify first to rule out itching caused by various diseases. If necessary, relevant examinations should be done for detailed identification. While actively treating the primary lesion, medication can be taken for symptomatic treatment.

Friends who occasionally have skin itching that is not very severe generally do not have any physical problems. However, if the skin itching lasts for a long time, friends must pay attention to it. It is likely caused by some diseases, and it also has a great impact on the patient's image. Therefore, patients must pay attention to the phenomenon of skin itching.