Clinical Guides
Evidence-based references on skin conditions, treatments, diagnostic technology, and prevention — reviewed by board-certified dermatologists.
Actinic Keratosis
Actinic keratoses are rough, scaly patches from years of sun exposure. They are the most common precancer and a direct precursor to squamous cell carcinoma, so treating them is one of the most effective ways to prevent skin cancer.
Tyler Long, DO · Reviewed Jun 2026
Basal Cell Carcinoma
Basal cell carcinoma is the most common skin cancer. It grows slowly, rarely spreads, and is highly curable, especially when caught early. What it looks like, how it's diagnosed, and how it's treated.
Tyler Long, DO · Reviewed Jun 2026
Photodynamic Therapy (PDT)
Photodynamic therapy uses a light-activated medicine to clear actinic keratoses and sun damage across a whole area at once. How it works, what to expect, and how well it works.
Tyler Long, DO · Reviewed Jun 2026
Squamous Cell Carcinoma
Squamous cell carcinoma is the second most common skin cancer. Most are cured with surgery, but a higher-risk minority can spread, so risk and early treatment matter. What it looks like, how it's diagnosed, and how it's treated.
Tyler Long, DO · Reviewed Jun 2026
Sunscreen & SPF
Daily sunscreen is one of the simplest ways to lower your risk of skin cancer and slow skin aging. Here is what the research actually shows it prevents, how to use it, and honest answers to the worries about safety and vitamin D.
Tyler Long, DO · Reviewed Jun 2026
Total Body Photography
Total body photography makes a 3D map of your skin so a dermatologist can spot new and changing moles over time. Here is how the technology grew from flat photos to a 3D map, where the evidence is strongest, and what it does not do.
Tyler Long, DO · Reviewed Jul 2026
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