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1. Persistent abdominal or back pain

My father initially complained of back problems, which he attributed to his posture and age. But the pain persisted, spread to his upper abdomen, and worsened at night or after meals.
2. Rapid and unexplained weight loss
In three weeks, my father lost over five kilos without any effort. His appetite disappeared and he became tired. We attributed it to stress, but it was the cancer that interfered with his pancreas’s role in digestion.
Sudden weight loss without a clear cause is a warning sign and should always be a reason for a medical examination.
Other warning signs to watch for
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