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Doctor Warns: Night Sweats Could Be Cancer
26 May
Summary
- Persistent night sweats might signal underlying cancers, especially blood cancers.
- Night sweats can occur with inflammatory chemicals affecting body temperature regulation.
- Seek medical advice if night sweats accompany weight loss or fatigue.

Persistent night sweats, often experienced during warmer months or due to minor causes, can sometimes be an overlooked indicator of serious underlying conditions, including certain cancers. Dr. Jiri Kubes, an oncologist, highlights that frequent or severe episodes should prompt medical consultation.
These excessive sweats during sleep can be triggered by the body's immune response, producing inflammatory chemicals that alter temperature regulation. Blood cancers, such as lymphoma, are frequently associated with this symptom. Many individuals attribute night sweats to stress, hormonal changes, or room temperature, delaying seeking professional advice.
Dr. Kubes emphasizes that night sweats become more concerning when accompanied by unexplained weight loss, persistent fatigue, swollen lymph nodes, or recurring fevers. The NHS advises consulting a GP if one regularly wakes up with soaking wet sheets. Prompt investigation of persistent bodily changes is essential for early detection and treatment.