What are the common early symptoms of cancer?

Early symptoms of cancer can vary widely depending on the type and location of the cancer. However, some common early symptoms include:

1. Unexplained weight loss: Losing weight without trying could be a symptom of various cancers, particularly cancers of the pancreas, stomach, esophagus, or lung.
2. Fatigue: Persistent tiredness or weakness that doesn't improve with rest could be a symptom of leukemia or other types of cancer.
3. Persistent cough or hoarseness: A cough that doesn't go away or hoarseness that persists could indicate lung cancer, throat cancer, or thyroid cancer.
4. Changes in bowel or bladder habits: This could include persistent constipation, diarrhea, blood in the stool, or changes in the size or frequency of bowel movements, which could be symptoms of colorectal or bladder cancer.
5. Unexplained pain: Persistent pain in any part of the body, especially if it doesn't have an obvious cause or doesn't improve with treatment, could be a symptom of bone, brain, or other cancers.
6. Changes in the skin: Changes in the size, shape, or color of moles or other skin lesions, as well as new or unusual skin growths, could be signs of skin cancer.
7. Difficulty swallowing: This could be a symptom of esophageal or throat cancer.
8. Changes in a wart or mole: Any changes in the appearance of a wart or mole, such as changes in color, size, or shape, should be checked by a doctor, as they could be signs of skin cancer.
9. Persistent indigestion or discomfort after eating: This could be a symptom of stomach or esophageal cancer.

It's important to note that these symptoms can also be caused by conditions other than cancer. However, if you experience any of these symptoms, especially if they persist or worsen over time, it's essential to see a doctor for evaluation and appropriate testing. Early detection and treatment can significantly improve the chances of successful outcomes for many types of cancer.