Background: Menopause, marked by hormonal decline and menstrual cessation, is associated with various symptoms. Socio-demographic and behavioural factors may influence symptom type and severity. Understanding these associations can inform better symptom management. Objectives: To identify factors associated with the presence and severity of menopausal symptoms through systematic review and meta-analysis. Search Strategy: We searched Medline, Embase, CINAHL and Cochrane for studies on demographic, behavioural, or health factors linked to vasomotor, vaginal dryness and joint symptoms in women aged 40–60. Selection Criteria: Studies reporting odds ratios or raw numbers for symptom presence or severity were included. Data Collection and Analysis: Studies were combined for meta-analysis, reporting odds ratios and 95% confidence intervals. Quality assessment was performed to quantify the risk of bias. Results: Of 9228 screened articles, 61 were meta-analysed. Compared with White women, Black women had higher odds of vasomotor symptom presence (OR 1.65, 1.41–1.94) and severity (OR 1.91, 1.10–3.29), and vaginal dryness presence (OR 1.27, 1.10–1.47), while Asian had lower vasomotor symptom presence and severity (OR 0.40, 0.22–0.72; OR 0.55, 0.53–0.56). Higher education (OR 1.31, 1.09–1.56), high income (OR 1.41, 1.01–1.97) and depression (OR 2.36, 1.51–3.70) were associated with increased presence of vasomotor symptoms. Smoking and obesity were associated with both presence (OR 1.63, 1.30–2.04 and 1.35, 1.02–1.78) and severity (OR 1.56, 1.07–2.27 and 1.42, 1.11–1.83) of vasomotor symptoms. Conclusion: Socio-demographic and behavioural factors, including ethnicity, education, income, smoking, obesity and depression, influence menopausal symptoms, highlighting the need for personalised care. Trial Registration: PROSPERO number: CRD42023459154.