Chronic kidney disease is a disease with multiple symptoms. Most kidney patients have typical symptoms such as fatigue, edema, loss of appetite, and proteinuria in the early stage; In the stage of renal insufficiency, blood pressure begins to appear It is significantly increased, and other metabolic indicators will also be disturbed to varying degrees; Progress to the stage of renal failure, the symptoms will increase and the harm will also increase, such as hyperkalemia caused by electrolyte imbalance, calcium Disorders of phosphorus metabolism can lead to serious complications such as heart disease, renal bone disease, and acidosis.
Itching is also one of the typical symptoms of nephropathy, which often brings trouble to many people.
Some patients discovered kidney disease after a long period of itching on their hands, while others discovered kidney disease after Abnormal symptoms began to appear.
Why is nephropathy accompanied by skin itching?
There is such a survey published in the professional medical journal CJASN before. Among the more than 5,000 patients with kidney disease stage 3 to 5, 3,350 people have symptoms of skin itching, accounting for 67%. .
Why does kidney disease cause itching in healthy skin?
It is mainly affected by two aspects. First, the immune inflammatory reaction occurs in the kidney, which leads to the deterioration of the filtration and metabolic environment in the kidney, the imbalance of water metabolism, the accumulation of a large number of toxins, and the serious water shortage in the kidney. It reacts to the epidermis of the body, causing dry and itchy skin.
Various symptoms caused by kidney function and changes in various elements in the body, such as thyroid function Hyperactivity or decline, elevated blood sugar, calcium and phosphorus metabolism disorders, anemia caused by reduced hemoglobin, and more vitamin A can also cause itching of the skin.
Substantial damage to renal function cannot be reversed, which increases the difficulty of timely removal of toxin “garbage” in the body and increases the risk of skin itching. Generally speaking, after kidney function is damaged, a series of chain reactions will occur in the body, and itchy skin is only one of them. Although it can help the body issue “alarm signals”, it also greatly reduces the quality of life of patients.
How to solve itchy skin? What are some ways to relieve itching?
I. Control of calcium and phosphorus metabolism disorders
After kidney damage, the effect of regulating water and sodium, electrolyte and acid-base balance will also decline, especially After renal insufficiency, electrolyte disturbances begin to appear abnormal. Among them, calcium and phosphorus metabolism disorder is one of the more common symptoms.
Elevated blood phosphorus can lead to increased parathyroid hormone and increased release of bone salts, resulting in calcium loss and renal bone disease. The accumulation of a large amount of blood phosphorus can also cause soft tissue calcification, causing itching, rashes and even ulcers.
Reduce blood phosphorus, help to prevent and relieve skin itching. The treatment of hyperphosphatemia can be started from two aspects:
Supplementing normal saline, expanding the extracellular volume, promoting the metabolism of phosphorus, and reducing the concentration of phosphate.
Taking calcium and phosphorus binders can regulate the calcium and phosphorus elements in the body to achieve the effect of reducing phosphorus and supplementing calcium.
In addition, eat less foods with high phosphorus content in daily life, such as lean meat, nuts, especially processed, seaweed and other seaweed, eggs.
II. Targeted antipruritic drugs
< p> For some patients with itchy skin that has seriously affected their normal life, antipruritic treatment can be performed first, followed by further systemic treatment. For example, antihistamines can inhibit the activity of the central nervous system and relieve itching. Opioid receptor antagonists are more effective for skin itching caused by uremia.
3. Daily care, skin care, exercise
After kidney damage, the metabolism of water and sodium in the body is disordered. Patients with edema need to limit the intake of water. The water in the skin is completely digested, which will cause the skin surface to be dry and itching will be aggravated.
We usually pay attention to skin care and keep moist. Glycerin and Vaseline can be used to achieve moisturizing effect. In order to prevent, some patients can effectively avoid itching by taking timely skin care. Kidney friends should also learn to plan ahead.
Appropriate exercise attention is helpful to promote blood circulation, reduce the deposition of a large amount of phosphate, and promote pore breathing. When sweating, the skin pores open, which is conducive to detoxification.
It is important to distinguish between renal pruritus and common allergyIf there are more pollen and catkins in spring, usually pay attention to wearing a mask for protection and protect the skin to prevent allergies.
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