Persistent, chronic pain without an obvious cause should be taken seriously. For example:
Back pain may be a sign of bone or ovarian cancer.
4. Unusual lumps or swelling
A new lump under the skin, such as in the breast, neck, groin, or armpit, may be one of the first symptoms of abnormal cell growth. Always consult a doctor if the lump persists.
5. Skin changes
Your skin can reflect what’s happening inside your body. Watch for:
Darkening, yellowing, or redness of the skin
Sores that don’t heal
New or changed moles
These may be related to skin cancer or internal tumors.
6. Persistent cough or hoarseness
A cough that lasts more than three weeks, especially one with blood, may indicate lung or throat cancer. Persistent hoarseness can also be a warning sign.
7. Changes in bowel or bladder habits
Sudden constipation, diarrhea, blood in the stool, or changes in urination frequency may be signs of colon, bladder, or prostate cancer.
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