One of the most critical indicators is a change in moles or spots. If a mole changes in size, shape, or color, or starts bleeding or itching, it could be a sign of skin cancer. Similarly, persistent rashes or unexplained itching that won’t go away may indicate allergies, infections, or even autoimmune conditions that need medical evaluation.

Non-healing sores or wounds are another red flag. While minor cuts usually heal quickly, open sores that linger can point to infections, diabetes-related complications, or more serious health issues. Sudden changes in skin color or texture — such as yellowing, darkening, or rough patches — may also signal liver problems, vitamin deficiencies, or other internal conditions.

Experts urge anyone noticing unusual skin changes to consult a healthcare professional promptly. Early detection and timely medical care can save lives and prevent complications. Paying close attention to your skin and acting on warning signs is one of the simplest but most powerful steps toward protecting your health.