Cancer is a word that many people fear, but understanding its possible warning signs can help people make informed decisions about their health. Although cancer does not always cause noticeable symptoms in its earliest stages, certain changes in the body deserve attention, especially when they persist, worsen, or appear without an obvious explanation.Find Cancer Care
The body often gives us signals when something is wrong. These signals do not automatically mean cancer is present. Fatigue, unexplained weight loss, unusual pain, and changes in digestion can have many causes, including infections, stress, nutritional deficiencies, and other medical conditions. However, recognizing persistent or unusual symptoms and discussing them with a healthcare professional can help identify problems earlier.
There is no single list of symptoms that can diagnose every type of cancer. Some cancers cause few or no symptoms initially, while others may produce noticeable changes. The following are 20 potential warning signs worth knowing about.
1. Unexplained Weight Loss
Losing weight without changing your diet or physical activity can sometimes be an early sign of an underlying illness, including certain cancers.
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Unintentional weight loss may occur with cancers affecting the stomach, pancreas, lungs, or other organs. Cancer can influence appetite, metabolism, digestion, and the body’s energy requirements.
For example, someone may notice that their clothes are becoming loose even though they are eating as usual. Others may feel full after eating only a small amount.
However, unexplained weight loss can also result from thyroid problems, diabetes, digestive disorders, depression, or other conditions.