PSI Barbering Practice Exam 2025 - Free Barbering Practice Questions and Study Guide

Basal cell carcinoma is recognized as the most common and least severe form of skin cancer. It arises from the basal cells, which are located in the lower part of the epidermis. This type of cancer typically grows slowly and is less likely to metastasize, meaning it rarely spreads to other parts of the body. The lesions often appear as small, shiny bumps or scabs that may bleed, but due to their slow growth and localized nature, they usually have a high cure rate when treated early.

In contrast, malignant melanoma, while more aggressive and dangerous, is less common than basal cell carcinoma. Squamous cell carcinoma can also be more severe in nature, with a higher risk of spreading than basal cell carcinoma. Actinic keratosis, although not a type of skin cancer itself, is considered a precancerous condition that can lead to squamous cell carcinoma if left untreated. Understanding the differences between these conditions is crucial for effective skin cancer awareness and prevention.