15 Common Warning Signs of Cancer

2.1 Skin Changes

The appearance of a new mole or changes in the size, shape, or color of an existing mole may indicate skin cancer. Patients should consult a dermatologist and consider a skin biopsy if unusual skin changes appear.

2.2 Persistent Cough

A persistent cough may result from postnasal drip, asthma, acid reflux, or infections. However, if the cough lasts long, is accompanied by blood, and especially occurs in smokers, medical evaluation including chest X-rays or low-dose CT scans may be needed to screen for lung cancer.

2.3 Breast Changes

While most breast changes are not cancer-related, women should regularly examine their breasts in the mirror. If a lump, unusual discharge from the nipple, redness, thickening, or pain occurs, medical evaluation is necessary. Doctors may recommend mammograms, breast ultrasounds, MRIs, or biopsies.