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Correlation of body mass index with semen parameters and testicular volume in men with infertility
Sadiq Abu1, Terkaa Atim2, Hadijat O Kolade-Yunusa3, Kenenna O Obiatuegwu4, Felix E Magnus2, Nuhu K Dakum5
1 Department of Surgery, Zenith Medical and Kidney Centre, Abuja; Department of Surgery, University of Abuja Teaching Hospital, Gwagwalada, FCT, Nigeria
2 Department of Surgery, University of Abuja Teaching Hospital; College of Health Sciences,Faculty of Clinical Sciences, University of Abuja, Gwagwalada, FCT, Nigeria
3 College of Health Sciences, Faculty of Clinical Sciences, University of Abuja; Department of Radiology, University of Abuja Teaching Hospital, Gwagwalada, FCT, Nigeria
4 Federal Medical Centre, Jabi, Abuja, Nigeria
5 Department of Surgery, Jos University Teaching Hospital, Jos, Plateau State, Nigeria
Correspondence Address:
Sadiq Abu,
Department of Surgery, Zenith Medical and Kidney Centre, Abuja, FCT, Department of Surgery, University of Abuja Teaching Hospital, Gwagwalada, FCT
Nigeria
 Source of Support: None, Conflict of Interest: None DOI: 10.4103/ajiac.ajiac_12_20
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Background: The question of whether body mass index (BMI) affects semen quality and male fertility is controversial and available evidence are inconclusive and poorly documented in Nigeria and Africa by extension. Aim and Objectives: The study was conducted to correlate body mass index, sperm parameters and testicular volume in men with infertility presenting to the urology division, University of Abuja Teaching Hospital, Gwagwalada Abuja. Material and Methods: This was a prospective cross- sectional study. Male patients with infertility who presented to Urology Division University of Abuja Teaching hospital were recruited into the study. The weight of the subjects were measured using digital scale in kilogram and the height of the subjects were measured in meters and BMI calculated. The testicular volumes of all the subjects were measured using Prader orchidometer. The semen samples were collected by the process of masturbation on day five of sexual abstinence and analyzed according to WHO 2010 criteria. Collected data were analyzed using SPSS version 20. Results: The mean BMI of the subjects was 25.97±4.57kg/m2 with a range of 18.80-44kg/m2. The mean testicular volume using the orchidometer was 12.02±3.55ml. Subjects with normal BMI were 39(45.9%), overweight 32(37.6%) and 14(16.5%) of the subjects were obese. There was strong significant negative correlation between BMI and semen concentration using Pearson correlation (r=-0.591, P=0.000), and sperm motility (r=-0.569, P=0.000). Conclusion: Although it is difficult to generalize our results to the overall population, our results suggest that increased BMI has a deleterious effect on semen concentration and sperm motility. Therefore, to ensure maximum fertility potential, patients may be advised to prevent excessive weight gain as well as reduce weight amongst the obese.
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