Abstract Facial symmetry is often associated with attractiveness. Mandibular growth anomalies can lead to facial asymmetry. The change in the pattern of mandibular growth, manifesting during the growth period of an individual can present with two classical hemi-mandibular anomalies namely Hemi-Mandibular Hyperplasia (H.H.) and Hemi- Mandibular Elongation (H.E.). The secondary growth centre (viz. the condylar cartilage) becomes hyperactive and plays an important role in the development of the two anomalies. Therefore they are grouped under condylar hyperactivity (CH). The two entities present with striking classical features which can be differentiated with each other. A combination of the two is also another common occurrence. The treatment however varies for the two anomalies. This article reviews the two classical presentations – H.H. and H.E., combination and Hybrid forms of hemimandibular growth anomalies.