BACKGROUND:more than 50% of HIV infected patients have haematological complications ,the incidence as well as the severity of these complications increases as the HIV disease progresses. Method ;–this study was carried out in departments of medicine ,JLN Medical College and hospital ajmer.in this observational study 100 patients were selected who attended the medical opd and admitted in various medical wards. Results;–in this study frequency and severity of anaemia increases with declining CD4 counts and has got significant impact on clinical outcome