Squamous-cell skin cancer, also known as cutaneous squamous-cell carcinoma (cSCC), is one of the main types of skin cancer.

Scabies, also known as the seven-year itch, is a contagious skin infestation by the mite Sarcoptes scabiei.

Seborrheic keratosis is a non-cancerous (benign) skin tumour that originates from cells in the outer layer of the skin.