What is usually the cause of itching on the body

Everyone must be familiar with dry, rough and itchy skin on their body. These are skin problems that everyone often encounters. Itching on the body is more common. Itching on the body can actually be regarded as a skin disease, and the causes are also varied. It may be simple external stimulation or it may be caused by some other diseases. So what is the reason for itching on the body? Let me give you a detailed introduction below.

Why does itching occur on the body? Itching is a common symptom of many skin diseases. If there is only skin itching without primary skin damage, it is called pruritus.

Systemic pruritus (pruritus universalis) is often associated with certain systemic diseases such as diabetes, uremia, hepatobiliary diseases, visceral tumors, blood diseases, thyroid diseases, allergic diseases, intestinal parasites, habitual constipation, irregular menstruation, pregnancy, mental anxiety, neurological diseases, etc. The pruritus of Hodgkin's disease is persistent, sometimes accompanied by a burning sensation. The incidence of pruritus is 10% to 25%, and it is the first symptom in 7% of patients, but the cause is unclear; more than 1/3 of patients with polycythemia have pruritus, which is often triggered by temperature changes and is related to histamine levels; 20% to 50% of patients with obstructive jaundice have pruritus, and the intensity of the pruritus is sometimes parallel to the bile salt concentration in the skin. Since the carboxylic acid level in the patient's central nervous system is elevated and naloxone treatment is effective, the pruritus may be caused by a central mechanism; patients with uremia also often have systemic unbearable pruritus, which may be related to certain metabolic imbalances; 3% to 47% of patients with systemic pruritus are found to have visceral tumors.

Abnormal skin condition and function (such as dryness, atrophy, etc.) and climate changes (such as heat, cold, etc.) can cause itching; contact with dust, glass fiber, dust mites in daily work and life, eating certain spicy and irritating foods, and certain close-fitting clothing can cause systemic itching. Systemic pruritus can also be caused by drugs, such as opioids, niacin, antidepressants, cimetidine and certain central nervous system stimulants.

What's the reason for itching on your body? We have given you some introductions and explanations about the skin above. You can judge the cause of your itching based on the situation of your skin. If it is caused by a common mosquito bite or some external stimulation, simple treatment is sufficient. If it is caused by other conditions, you need to go to the hospital for examination and treatment in time.