Moles are common on the skin and most of them are harmless. However, it’s important to keep an eye on your moles and know when to worry about them. Some of the reasons why a mole may itch include dry skin, an allergic reaction to detergent or soap, irritated skin, or in rare cases, it could be a cancerous mole. Therefore, it’s important to see a board certified dermatologist if you notice one of your moles begin itching. It’s also important to know the signs of a mole that may indicate skin cancer, such as melanoma. The ABCDE guide can help you remember what to watch for. A is for asymmetrical shape. One half is unlike the other half. B stands for border. The mole has an irregular, scalloped, or poorly defined border. C is for color. The mole has varying colors or is not uniform in color. D is for diameter. The mole is larger than 6 millimeters (about the size of a pencil eraser). E is for evolving. The mole is changing in size, shape, or color. If you notice any changes in your moles, it’s important to see a board certified dermatologist. It is important to consult your board certified dermatologist about any suspicious moles, as these lesions may represent malignant melanoma, a life-threatening type of skin cancer. Examine your skin every month or two to look for any new or changing moles. If a mole is rapidly expanding or changing and appears different from other moles, it may be cause for concern. These moles are referred to as “ugly ducklings” by dermatologists. Such changes could be indicative of melanoma. Another sign to watch out for is bleeding or oozing. If a mole starts to bleed, ooze, or becomes painful or itchy, see a doctor right away.