Cryotherapy is generally safe for cancer patients, but the answer depends entirely on which type of cryotherapy you’re asking about. Medical cryotherapy, also called cryosurgery or cryoablation, is an established cancer treatment performed by doctors to destroy tumors with extreme cold. Whole-body cryotherapy, the wellness trend involving standing in a freezing chamber, is a completely different thing, and no devices for it have been cleared or approved by the FDA.
Medical Cryotherapy vs. Whole-Body Cryotherapy
These two share a name but almost nothing else. Medical cryotherapy uses liquid nitrogen or argon gas delivered through a probe directly into or onto cancerous tissue. A doctor guides the probe using ultrasound or MRI to target the tumor precisely and limit damage to surrounding healthy tissue. When the frozen tissue thaws, the cancer cells die. This is a targeted, image-guided medical procedure.
Whole-body cryotherapy involves stepping into a chamber cooled to extremely low temperatures for two to three minutes. It’s marketed for pain relief, inflammation, and general wellness. The FDA has stated clearly that it has not cleared or approved any whole-body cryotherapy devices, and no credible evidence supports using it to treat or prevent cancer. If you’re a cancer patient considering whole-body cryotherapy at a spa or wellness center, that’s worth knowing before you spend the money.
Which Cancers Are Treated With Cryoablation
Cryoablation is used for several cancer types, including kidney, liver, lung, prostate, bone, and breast cancers. It’s typically recommended when surgery isn’t a good option. That might mean the tumor is too large to remove surgically, or the patient has other health conditions that make traditional surgery too risky. In those situations, cryoablation offers a less invasive alternative that can still destroy cancerous tissue effectively.
The procedure is particularly useful for small, localized tumors that a probe can reach. It’s not a replacement for surgery in every case, but for patients who aren’t surgical candidates, it fills a real gap in treatment options.
Risks and Side Effects
Like any medical procedure, cryoablation carries risks. The most common include bleeding, blood clots, infection, and pain in the treated area that can persist after the procedure. There’s also a small risk of injury to nearby healthy organs and tissue, and the possibility of a reaction to the anesthetics used during the procedure.
For cryotherapy applied to skin lesions, the treated area typically turns red and may blister and swell. If blisters form, you should leave them intact rather than breaking them open. Some patients notice clear drainage from the site, which is normal. Hair loss in the treated area can occur depending on how deep the freezing reached, and that hair loss is sometimes permanent.
Skin discoloration is one of the longer-lasting effects. The treated area may appear pink, red, or lighter or darker than your surrounding skin for up to a year, and in some cases the color change is permanent. Signs of a problem worth reporting to your doctor include redness or swelling spreading beyond the treated area, increasing pain, skin that feels hot or hard, yellow or green drainage, a bad smell, or bleeding that won’t stop with pressure.
Effects on the Immune System
One concern cancer patients reasonably have is whether cryotherapy disrupts the immune system, which is already under strain from the disease and its treatments. Research in breast cancer patients offers some reassurance on this point. A study comparing patients who received cryotherapy before surgical removal to those who had surgery alone found no meaningful differences in immune cell activity or inflammatory markers between the two groups. Key immune signaling molecules, including those involved in both attacking tumors and regulating inflammation, remained at baseline levels before and after cryotherapy treatment. In short, the procedure did not appear to suppress or overstimulate the immune system.
Cryotherapy for Chemotherapy Side Effects
There’s a separate and promising use of cold therapy for cancer patients that doesn’t involve treating the tumor itself. Cryotherapy in the form of frozen mittens and foot wraps is being studied as a way to prevent or reduce peripheral neuropathy caused by chemotherapy. Peripheral neuropathy, the tingling, numbness, and pain in the hands and feet that some chemo drugs cause, is one of the most common and disruptive side effects of treatment.
Clinical trials are currently evaluating whether wearing frozen gel wraps during chemotherapy infusions can protect the nerves in the hands and feet by reducing blood flow to those areas while the drug circulates. Topical cryotherapy is also being tested for relieving pain in patients who already have chemotherapy-induced neuropathy. This is a lower-risk application since it involves surface-level cold rather than deep tissue freezing, though results are still being confirmed through ongoing trials.
What Monitoring Looks Like
If you undergo a cryoablation procedure, expect close monitoring afterward. Vital signs are typically checked every 15 minutes for the first hour, then hourly for the next 24 hours. This allows your medical team to catch complications like bleeding or drops in blood pressure early. The intensity of monitoring reflects the fact that while cryoablation is less invasive than open surgery, it still involves tissue destruction and carries real, if manageable, risks.
Recovery time varies by the location and size of the treated area, but most patients experience less pain and a shorter recovery compared to traditional surgery. That’s one of the main reasons cryoablation exists as an option in the first place.