Marjolin's ulcer (MU) is a cutaneous malignancy that arises over previously injured skin, longstanding scars and chronic wounds. Burn scars are the most common predisposing condition that leads to the development of MU with reported incidence of 0.77 to 2%. Exact etiology for the development of MU is not known. MU is relatively commoner among males than females and affecting all age groups and races. We report a case of Marjolin's ulcer in a 24-year-old woman arising over a long-standing burn scar. Keywords: Tumors, Squamous cell carcinoma, Skin malignancy