Unlike many other forms of cancer, skin cancer has recognizable signs and symptoms. The most important warning sign is a new growth or spot on the skin that changes in size, shape, texture or color. A small lesion or sore that bleeds, scabs or crusts over and reopens may be a warning sign of skin cancer.

Most signs of change in the skin appear on the areas exposed to sun, including the scalp, face, lips, ears (especially the upper rims), neck, chest, back and extremities. However, skin cancer can appear anywhere on the skin – even in areas that are not exposed to the sun, such as the palms of the hands, in between the toes and even in the genital area.

Skin changes may occur over a period of several weeks to one to two years. Such changes should be evaluated immediately by a dermatologist (a doctor who specializes in the physiology or pathology of the skin) or other qualified physician.

Common signs of basal cell carcinoma include:

• A wax-like or pearl-colored bump, often on the face, ears or neck
  
  
• A flat, skin-colored or brown lesion,  often on the chest or back

Common symptoms of squamous cell carcinoma include:

• A reddish nodule with a firm texture, frequently on the face, lips, ears, neck, hands or arms
  
  
• A flat lesion with a crusty or scaly surface that may appear on the face, ears, neck, hands or arms

It is important to note that not all skin changes are cancerous but patients should immediately notify their physician if suspicious growths or changes occur.