Which type of skin cancer is the most dangerous?

Malignant melanoma is considered the most dangerous type of skin cancer due to its ability to grow rapidly and spread to other parts of the body. Unlike basal cell carcinoma and squamous cell carcinoma, which are both more common but generally less aggressive, melanoma can metastasize quickly if not detected early. This means it has the potential to invade major organs, significantly increasing the risk to the patient's life.

Additionally, melanoma can arise from existing moles or appear as new dark spots on the skin, making it vital for individuals to monitor their skin regularly for changes. Early detection can lead to effective treatment, but if allowed to progress, melanoma can become life-threatening. This seriousness associated with melanoma and its tendency for aggressive behavior is what distinguishes it from other skin cancers.