The actual hyperthermia process varies by technique and treatment site, but generally includes anesthesia or local numbing, placement of a probe or device, and continuous temperature monitoring during treatment — all carried out and monitored by the care team.
What does the care team generally do during treatment?
According to the National Cancer Institute (NCI), for local hyperthermia, the doctor first numbs the treatment area, then inserts small probes fitted with tiny thermometers into the tumor to closely monitor the temperature of the tumor and nearby tissue during treatment; imaging techniques such as CT scans may be used to confirm proper probe placement.
Does the process differ a lot by hyperthermia type?
Yes, significantly:
| Type | General process characteristics |
|---|---|
| Local hyperthermia | Probe placed in or near the tumor, requires local anesthesia, may involve imaging guidance |
| Regional hyperthermia | Larger area; some techniques (such as regional perfusion) circulate blood externally before returning it, with higher complexity |
| Whole-body hyperthermia | Usually requires sedation or light anesthesia, with continuous monitoring of heart rate, blood pressure, and other indicators during treatment |
How long does a single session usually take?
Actual treatment duration varies by device, treatment goal, and technique used, and is often coordinated with the schedule of radiation therapy or chemotherapy. Actual duration and number of sessions should follow your care team’s treatment plan — this page does not provide a fixed number that applies generally.
Is the treatment process painful?
Actual sensation varies by treatment type, site, and individual tolerance; some methods use local or general anesthesia/sedation to reduce discomfort. Discuss expected sensations and how they will be managed with your care team before treatment.
Last updated: 2026-08-16 | Sources: National Cancer Institute (NCI), “Hyperthermia to Treat Cancer” (updated 2025-05-15); American Cancer Society (ACS), “Hyperthermia to Treat Cancer” (updated 2025-04-07). If content differs from the latest research, the latest publicly available information takes precedence — please also consult your care team.