This randomized controlled trial will compare platelet rich plasma dressing with normal saline dressing for the treatment of chronic non healing cutaneous ulcers, including diabetic foot ulcers, venous leg ulcers, pressure ulcers, and other suitable chronic ulcers of at least six weeks duration. A total of 100 adults will be recruited from the Department of Dermatology, Multan Medical and Dental College, and allocated in a 1:1 ratio to receive either autologous platelet rich plasma dressing or normal saline dressing for six weeks, with both groups receiving the same standardized wound care package including debridement when indicated, infection control, moisture balance, and etiology specific supportive measures such as offloading or compression. The hypothesis is that platelet rich plasma dressing will lead to greater wound healing by supplying concentrated platelets and naturally occurring growth factors that support granulation tissue formation and re epithelialization. The primary outcome is the percentage reduction in ulcer area from baseline to the end of follow up, measured using standardized planimetry. Secondary outcomes include the proportion of ulcers achieving complete epithelialization within the follow up period, time to complete healing among ulcers that close, and change in pain scores during treatment.