الفهرس 
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Abstract
Gynecomastia is defined as benign proliferation of male breast glandular tissue Braunstein. Asymptomatic gynecomastia is very common and has a trimodal age distribution, occurring in neonatal, pubertal, and elderly males. Obesity can be associated with increased peripheral conversion of androgens to estrogens and is associated with a higher prevalence of gynecomastia. The goal of this study was to improve adolescent male school student health through assessing prevalence of gynecomastia among adolescent school student. A cross sectional study was conducted in secondary school in Estpary. It included all adolescent male school student in secondary school in Estpary. They were assessed using by questionnaire that was designed to assess prevalence for gynecomastia and estimated risk factors through personal interview all of them filled in the validated after piloting it.
Results of this study was as follow:
In the current study 36 students (14.2%) of all students for secondary school in Estpary had gynecomastia.
The highest percent of parent occupation was university education (44%) and their occupation was at profisitiol level (27.8%) for gynecomastia case.
In addition, 41.7% of patients with gynecomastia was overweight and only (17.5%) of control group that also leads to 3.4 times increased risk of gynecomastia than control group.
The highest percent of family and surgical history was 46% of gynecomastia patient, while (93.1% & 79.2) was the highest percent of
positive family history and patient’s history of undescended testis for control group.
About 25% of patients was smoking, while only (9.2%) of control was smoker and that’s leads to 3.3 times (OR = 3.3) increase in risk of developing gynecomastia with CI (1.35 – 7.9).
The highest percent (82.9%) confirmed development of secondary sexual characters was control group, while only (47.2%) of patients. Also (47.2%) of gynecomastia patients were not knowing whether having these symptoms.
The most affecting risk factors to develop gynecomastia was (5.2, 4.3, 4.1, 3.9, 3.4, 3.3, 2.2, 1.05) for undescended testis, the history of surgery, overweight, business or trade working of the father, development of secondary sexual characters, smoking, eating fast food (3-5) times and having a household mother respectively.