Following Dolly Parton's death last week after a brief battle with cancer, a doctor has spoken out about the early symptoms people commonly dismiss, and why persistence, not severity, is usually the biggest clue something's worth getting checked.
Why symptoms don't always feel obvious
Dr Jiri Kubes, a radiation oncologist and medical director at the Proton Therapy Center, explained that a common misconception is that cancer comes with intense or obvious symptoms from the outset. In reality, he says, that's rarely the case. He's stressed that any one symptom on its own rarely points to cancer, and most people experiencing these signs won't have it, but persistence is what matters most, whether something keeps returning, lasts several weeks, or simply doesn't feel right.
Persistent fatigue
Everyday tiredness is normal, especially after a busy period or poor sleep, and usually resolves with rest. Dr Kubes said cancer-related fatigue tends to feel different, describing it as an overwhelming exhaustion that doesn't improve with sleep. While there are many possible explanations, including anaemia, thyroid issues, or infections, he recommends speaking to a GP if fatigue persists without improving.
A lingering cough
Most coughs clear up within a couple of weeks and aren't cause for concern. Dr Kubes said a cough that continues for several weeks, worsens over time, or comes with shortness of breath, chest discomfort, or blood in sputum is worth having assessed. He was clear that a persistent cough doesn't automatically mean cancer, since there are far more common causes, but it's still sensible to get checked if it behaves differently from a typical cough.
Unexplained weight loss
Weight loss with a clear cause, such as dieting or illness, usually isn't a concern. Dr Kubes said losing weight without any change in diet or lifestyle is worth investigating, even though there's often a more straightforward explanation behind it.
The bigger takeaway
Dr Kubes said one of the most common mistakes people make is waiting for symptoms to become severe before seeking help, when many early warning signs are vague and easily mistaken for something else. He added that people shouldn't become anxious over every minor ache or cough, but should pay attention to what's normal for their own body and get anything persistent checked, since catching potential issues early can make a significant difference to treatment outcomes.
