Background and Aim: A considerable number of studies have suggested that there is a strong correlation between 25-hydroxyvitamin D or vitamin D levels and overall health, with reported impacts ranging from mental health and vital organ health to musculoskeletal health. Our study's objective is to assess vitamin D deficiency in individuals of all ages and sexes with a particular emphasis on low levels of vitamin D-3 (30), which can help to prevent severe vitamin D shortage in light of the growing public health concern. Material and Methods: The present observational, retrospective study was conducted at the king Khaled general hospital Hafar Al batin, Saudi Arabia for the duration of 2 years. The medical records of patients with orthopedic diseases who were admitted to the hospital across the age spectrum and in both genders were examined. To evaluate the relationship between vitamin D-3 levels and different age groups, we looked at the data of 800 such patients. Minor vitamin D deficiency is classified as vitamin D insufficiency (25-OHD 20-30 ng/mL) and moderate and severe vitamin D deficiencies are classified as deficiency (25-OHD 20 ng/mL). Results: 800 patients' records were examined during the study period, with 250 men (31.25%) and 550 women (68.75%) represented in the patient records. 510 patients (63.75%) had vitaminD deficiency (20 ng/ml), 140 patients (17.5%) had levels between 20 and 30 ng/ml, and 217 patients (21%) had adequate levels. Young people (ages 31 to 40) have higher levels of vitamin D deficiency than other age groups, according to age groupings. 20% of patients in the 31–40 year age group had vitamin D insufficiency. Conclusion: Although people of all ages are at risk for vitamin D insufficiency, those between the ages of 31 and 40 were the most affected. Compared to men, women have a higher chance of developing hypovitaminosis D. Clinical professionals who are worried about vitamin D deficiency must work diligently and together to raise public awareness of the condition.