Pilonidal sinus is a chronic infection in the natal cleft, often caused by ingrown hairs and prolonged sitting. Rhomboid flap repair is an advanced surgical technique used to treat recurrent or large pilonidal sinuses. The procedure involves excising the affected tissue in a rhomboid shape and covering the defect with a rotational flap from the surrounding healthy skin. This technique provides better wound healing, reduces tension, and lowers the risk of recurrence compared to traditional excision. It is performed under spinal or general anesthesia, with hospital discharge within a day or two. Recovery takes around 2-4 weeks, with patients advised to avoid prolonged sitting and maintain hygiene. Possible complications include infection, fluid collection, or delayed healing. The rhomboid flap method offers excellent long-term results, minimizing discomfort and recurrence while promoting faster recovery.