Excessive sun exposure can lead to which of the following conditions?

Excessive sun exposure can lead to actinic keratosis, a condition characterized by rough, scaly patches on the skin. This occurs due to prolonged exposure to ultraviolet (UV) radiation, which damages the skin cells. Actinic keratosis is considered a precancerous condition, as it can develop into squamous cell carcinoma if untreated. The process involves alterations in the skin's upper layer, where UV radiation causes DNA damage in the skin cells, leading to abnormal growth that manifests as these patches.

By engaging in consistent sun protection and reducing UV exposure, individuals can lower their risk of developing actinic keratosis. It’s also important for estheticians and skincare professionals to educate clients on the importance of sunscreen and protective measures to prevent this condition and other skin-related issues related to sun exposure.

The other conditions listed, while associated with various skin issues, do not have a direct correlation with excessive sun exposure in the same way that actinic keratosis does, making it the most suitable answer in the context of this question.