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Background: Pterygium is a fibrovascular tissue that abnormally invades the cornea from the conjunctiva. Aim of the work: Comparison Bare sclera technique of pterygium excision immediately after injecting it with MMC and conjunctival autografting without using MMC regarding recurrence rate and other complications. Methods: This prospective interventional study included 40 cases of pterygia from September 2017 to March 2019. cases were divided into two groups: Group 1 included 20 eyes received 0.1 ml [0.01%] of intrapterygial mitomycin-C [MMC] injection, then excision with bare scleral Group 2 included 20 eyes with simple excision then covering the bare sclera with a conjunctival autograft from superior bulbar conjunctiva. Results: The mean age was 45.175 and 45.4 years in Group 1 and 2, respectively, [P = .527]. There were 7 [35%] males and 13 [65%] females in Group 1 and 8 [40%] males and 12 [60%] females in Group 2 [P = .744]. The regression rate was 5% in each Groups [P = 1]. Postoperatively, scleral hypo vascularity occurred in 5 eyes [25%] in Group 1 while never in Group 2 [P = .009]. Graft necrosis noticed in 2 cases [10%] in group 2. Conclusion: Both techniques resulted in a negligible [5%] recurrence rate. Although conjunctival graft with a significant reduction of complications as scleral hypo vascularity but with more surgical time.