People with kidney cancer may develop pruritus (persistent itchiness) for several reasons. Itching may be caused by the cancer itself, side effects of treatment, or chronic kidney disease (CKD) linked to kidney cancer.
If you have kidney cancer and itchy skin, you may wonder what you can do for relief. Here’s what to know about the causes of itching, plus some tips that may help.
Chronic pruritus can sometimes be linked to cancer or chronic kidney disease. About one-third of kidney cancer survivors in the United States either have CKD or develop it over time.
Cancer treatments and some skin conditions can also cause itching. Here are some possible reasons for itchy skin.
Sometimes people with kidney cancer also have CKD, which is known to cause itchy skin. The two conditions are closely connected, and each may increase the risk of developing the other.
Studies have found that 22 percent to 36 percent of people have CKD at the time of their kidney cancer surgery. If you have kidney cancer and advanced kidney disease requiring dialysis, you may develop chronic itching that’s often worse at night and affects large areas of the body.
Kidney cancer can sometimes cause paraneoplastic syndromes — groups of symptoms caused by the cancer, even when it hasn’t spread to that area of the body. These symptoms can affect many parts of the body. If paraneoplastic syndrome affects your skin, you may develop itching, flushing (sudden skin discoloration), or noncancerous skin growths.
Cancer treatments such as immunotherapy, radiation therapy, and chemotherapy may lead to pruritus. If you feel itchy after treatment, you may be reacting to one of the drugs in your treatment regimen.
Itching can also be a side effect of treatment. Immunotherapy drugs can cause dry, itchy skin. Radiation therapy can also damage skin cells, leading to itching and peeling skin.

Itchiness is your body’s way of signaling that something’s wrong. Scratching may bring short-term relief, but it can also trigger an itch-scratch cycle that makes itching worse. Over time, repeated scratching can damage the skin, cause pain, and affect your quality of life.
People with kidney cancer may be more likely to develop itchy skin, especially if they also have kidney disease. In a National Kidney Foundation survey, 61 percent of people with CKD described their itch as “somewhat intense,” while 25 percent said it was “extremely intense.”
Itching often affects the face, back, and arms. Some people describe the feeling as pins and needles. The itch may stay in one area or spread across the entire body.
Frequent scratching can lead to skin changes, including sores, thick or leathery skin, and prurigo nodularis (firm, itchy bumps). Some people may also develop a kidney rash (very itchy, dome-shaped bumps).
You may also notice that certain triggers make your itching worse. These can include temperature changes, stress, exercise, and showering.
Chronic itching can also disrupt sleep, affect your mood, and lower your quality of life. Constant itching may even affect your relationships and daily activities.
If itching has become a problem, your healthcare team can help you manage your symptoms. Treatment often includes a mix of self-care, comfort measures, over-the-counter products, and prescription medications.
Here are some options that may help relieve itching. Talk with your dermatologist, nephrologist, or oncologist about which treatments may be right for you.
One of the best ways to reduce itchiness is to practice good skin care and avoid triggers such as hot showers and dehydration. You can also try these tips:
Comfort measures such as the following may help break the itch-scratch cycle when your skin is especially itchy:
Talk with your oncologist about which over-the-counter treatment options might be best for you. Some people find relief with powders containing cornstarch or talc, while others prefer creams, lotions, or emollients.
When choosing products, keep these points in mind.
Healthcare providers may prescribe medications to treat itching or related skin problems. Depending on the cause, treatment may include steroids or humectants, such as salicylic acid, ammonium lactate, or urea, which help the skin retain moisture. Antibiotics, antihistamines, sleep aids, and antidepressants may also help manage symptoms.
A medication known as difelikefalin may help reduce itching in people with CKD and kidney cancer. People with end-stage kidney disease may also benefit from ultraviolet B phototherapy, a type of light therapy.
If your itching is severe, disrupts your daily life, or keeps getting worse, contact your healthcare provider. You may need a different treatment plan, or the itching could be caused by another condition, such as liver disease.
Call 911 right away if your itching happens along with hives, swelling of the lips or tongue, or difficulty breathing. These may be signs of anaphylaxis, a severe allergic reaction that needs emergency medical care. Left untreated, anaphylaxis can lead to low blood pressure, loss of consciousness, or death.
The good news is that many people find relief once the cause of the itching is identified and treated.
On MyKidneyCancerTeam, people share their experiences with kidney cancer, get advice, and find support from others who understand.
If you have kidney cancer and have experienced itchiness, what have you done to cope? Let others know in the comments below.
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