Cutaneous and systemic signs of acute and chronic arsenic poisoning may be vague. Thus, an awareness of these signs is crucial to prevent late or missed diagnoses. This is especially true in non‐endemic countries where individuals may present decades after exposure, or may still be ingesting arsenic via a non‐classical exposure. Existing literature emphasizes several well‐known cutaneous presentations of arsenic toxicity while ignoring the complete clinical spectrum, including several rare tumours of relevance to the dermatologist. This study aims to review the existing literature on dermatological presentations of arsenic toxicity and their management in adults.