Morphometric analysis of nasal shapes and angles in young adult males residing in Obio-akpor local government area

Morphometric analysis of nasal shapes and angles provides essential baseline data for clinical, surgical, and anthropological applications. Variations in nasal morphology are influenced by sex, ethnicity, and environmental adaptation. Despite the anatomical and clinical significance of nasal parameters, there is limited morphometric data specific to Nigerian sub-populations, particularly among young adult males in Obio/Akpor Local Government Area (LGA), Rivers State. This study aimed to perform a detailed morphometric analysis of nasal shapes and angles among adult males in Obio/Akpor LGA.  A descriptive cross-sectional study was conducted among adult male participants aged 18–49 years. Standardized anthropometric procedures were used to obtain linear and angular nasal measurements, including nasal height, nasal width, nasofrontal angle, nasal tip angle, and nasolabial angle. Measurements were taken in accordance with standard anatomical landmarks using calibrated instruments under controlled conditions. Data were analyzed using descriptive and inferential statistics to determine mean values and patterns of nasal shape. The study revealed that adult males exhibited a mean nasal height of 4.71 ± 0.38 cm and a mean nasal width of 4.18 ± 0.32 cm, resulting in a mean nasal index of 88.76 ± 4.42, classifying the majority as platyrrhine (broad-nose type). The mean nasofrontal angle was 133.64 ± 8.55°, the nasolabial angle averaged 97.21 ± 5.74°, while the nasal tip angle was 83.42 ± 6.33°. These values indicate a moderately broad nasal configuration with a well-projected tip the findings are significant for use in forensic identification, reconstructive surgery, and comparative anthropological analysis.