University students all over the globe are commonly affected by various health problems that impact their academic and daily life. Common illnesses like flu, cough, stress, anxiety, and depression deteriorates their well-being, leading to interference with their university experiences and learning process. This study aims to investigate the occurrence of common illnesses in students of a private university of Malaysia that affects their health and quality of life. Method:A cross-sectional study was carried out among 400 students by convenience sampling from all faculties of a private university. A descriptive analysis was carry-out using SPSS (Version 20) for estimating various illnesses reported on pre-validated General Health Assessment form.Result: Occurrence of common illnesses among university students during the previous 12 months was estimated and the same was also compared tothe previous month. The study found significant correlation (p = 0.01) in most of the illnesses studied. The overall study shows that the health of students surveyed is under the acceptable rang.5 students (1.3%) stated that their general health was poor, 42 students (10.5%) stated that their general health was fair, 191 students (47.8%) stated that their general health was good, 101 students (25.3%) stated that their general health was very good and 61 students (15.3%) stated that their general health was excellent on the Likert scale. Conclusion:This cross sectional study indicates that despite students being exposed to several stress factors that lead them to being more prone to illnesses or poor healthy state such as mental, environmental and academic stress, most of the students of university were healthy. Their health status was still in the scale of excellent or very good.