Hair is a marvelous structure with cosmetic function. Androgenetic alopecia [AGA] is the most common hair loss condition affects both sexes; AGA is thinning of scalp hairs that initiated by androgens in susceptible patients. Complete blood count [CBC] parameters have been introduced as diagnostic biomarkers for many diseases associated with the inflammatory process: This study aimed to assess blood indices in patients with androgenetic alopecia. This case control study was included thirty male and twenty female patients complaining of androgenetic alopecia, and thirty age and BMI matched healthy volunteers. Patients were recruited from outpatient clinic of Dermatology, Venereology and Andrology Department of Benha University Hospitals during the period from December 2018 to June 2019.All participants were tested for determination of blood indices. Results: PLT count was found to lower in AGA patients compared to controls without significant difference. AGA group showed significantly higher MPV, NLR and PLR were found to be significantly higher in AGA patients compared to controls. Patients with AGA showed high level NLR, PLR and MPV.