Cat scratch disease is benign self-limiting infectious disease caused by B. Henselae. It can occur worldwide with no racial or sex predilection. Cats are the major reservoirs. Transmission can occur through biting, scratching and licking. Patients present with regional lymphadenopathy. A 17-year-old male presented with a single swelling in the inguinal region of 15 days duration. It was gradually increasing in size. The swelling measured 6cm * 5cm, soft to firm in consistency, non-tender. The mobility was restricted. Fine needle aspiration cytology was performed which was diagnosed as granulomatous lymphadenitis. The swelling was excised and sent for histopathological examination. Histopathologically, a final diagnosis of Cat-scratch lymphadenitis was made. Cat-scratch Disease is a self-limiting illness in an immuno-competent host. The associated lymphadenitis is mainly solitary and unilateral. Although it is not a unique diagnosis, Cat-scratch disease is required to implement appropriate and targeted antibiotic therapy.