Lentigo maligna (LM) is a type of melanoma in situ that predominantly occurs in sun-damaged areas of older adults with light skin. Over the last decade, the incidence of LM has increased. Concerningly, LM can grow slowly over the years and eventually progress to an invasive tumor termed lentigo maligna melanoma (LMM). Hence, the importance of early diagnosis of LM to prevent disease progression. Diagnosis is confirmed by techniques such as clinical examination, dermoscopy, biopsy, reflectance confocal microscopy, and histopathological examination are employed. These techniques distinguish LM from similar-presenting lesions, including solar lentigo, pigmented actinic keratosis, seborrheic keratosis, and lichen planus-like keratosis. LM is most often treated surgically as it offers the lowest recurrence rates when compared to other modalities. Surgical modalities include wide local excision, staged excision, and Mohs micrographic surgery. Non-surgical modalities, such as radiotherapy and topical imiquimod, are usually reserved for patients not indicated for surgery. Focusing on early detection and increasing education about prevention through public health strategies may lead to better health outcomes.