Melanoma is a type of skin cancer that develops in melanocytes, the cells responsible for producing skin pigment. Although it can affect people of different skin tones, ultraviolet radiation exposure is an important risk factor. Understanding sun safety, recognizing changes in moles, and attending appropriate medical examinations can help individuals reduce preventable risks and identify suspicious skin changes early.
Melanoma is a potentially serious form of skin cancer that can develop on different parts of the body, including areas that receive little sunlight. Exposure to ultraviolet (UV) radiation from sunlight and tanning devices increases the risk of developing melanoma. Genetics, a history of sunburn, numerous moles, and a personal or family history of melanoma can also influence individual risk. Understanding these factors helps people adopt protective habits and recognize changes that require medical attention.
Protecting the skin from excessive UV exposure is an important preventive measure. Sun damage can accumulate over time, while intense exposure that causes sunburn can also increase skin cancer risk. Skin protection is useful throughout the year, particularly when spending extended periods outdoors.
Important preventive measures include:
Use broad spectrum sunscreen: Choose sunscreen labeled SPF 30 or higher that protects against UVA and UVB rays. Apply it generously to exposed skin and reapply approximately every two hours, or more frequently after swimming or sweating.
Wear protective clothing: Long sleeves, wide brimmed hats, and UV protective sunglasses can reduce direct exposure to sunlight.
Seek shade: Limit direct sun exposure during periods of strong sunlight. Shade reduces exposure but does not eliminate UV radiation completely.
Avoid tanning beds: Indoor tanning devices expose the skin to UV radiation and increase the risk of skin cancer.
Take extra care with sensitive skin: People with fair skin, a history of sunburn, many moles, or a family history of melanoma may have increased risk and should discuss appropriate precautions with a healthcare professional.
Regularly observing the skin can help individuals notice unusual changes in existing moles or the appearance of new spots. Melanoma does not always resemble a typical mole, and changes can occur on the scalp, soles of the feet, under the nails, and other less visible areas.
The ABCDE method is a useful guide for recognizing potentially suspicious moles, although not every melanoma follows these characteristics.
Asymmetry: One half of a spot looks different from the other half.
Border: The edges are irregular, blurred, or uneven.
Color: The spot contains different shades of brown, black, red, white, or blue.
Diameter: The spot is often larger than 6 millimeters, although melanoma can be smaller.
Evolving: A mole or spot changes in size, shape, color, elevation, or sensation over time.
Additional warning signs include a sore that does not heal, a new dark line beneath a nail, persistent itching, or unexpected bleeding. Any suspicious or changing skin lesion should be assessed by a qualified healthcare professional rather than diagnosed through self-examination alone.
Individuals with a personal history of melanoma, a strong family history, or other significant risk factors may benefit from professional skin examinations at intervals recommended by their healthcare provider. Early medical assessment can help determine whether a suspicious lesion requires further investigation.
Combining sun protection, awareness of skin changes, and appropriate medical care supports long-term skin health. Although melanoma cannot always be prevented, reducing UV exposure and seeking timely evaluation of unusual skin changes are important steps in reducing risk and supporting early detection.