Introduction: The involvement of bone marrow by solid tumors signifies an advanced stage of disease and portends a grim prognosis. It is atypical for bone marrow metastases to be the initial manifestation of a solid tumor, particularly when the primary site of the neoplasm remains elusive despite clinical examination, laboratory testing, and imaging techniques. In such instances, a bone marrow examination can be pivotal for diagnosing the primary malignancy. Aims and Objectives: The study aimed to evaluate the pattern of bone marrow infiltration by various solid tumors and their correlation with clinical and hematological findings. Material and Methods: This retrospective cross-sectional study was conducted in the Pathology Department of SCB Medical College and Hospital over six months. Among 78 bone marrow aspirations and biopsies performed, 11 cases of bone marrow metastases from non-hematopoietic malignancies were encompassed in this study. Results: Of the 11 patients included, 8 were male and 3 were female, with ages ranging from 20 to 60 years. The predominant clinical manifestations were generalized debility, weight loss, body aches, and anorexia. The most frequent hematological finding was the coexistence of anemia and thrombocytopenia. The prevailing histological subtype was adenocarcinoma. After comprehensive evaluation, the primary focus was identified in eight patients, while the other three cases were categorized as tumors of unknown origin. Conclusion: Bone marrow is an important yet uncommon site for metastasis of solid tumors. Therefore, routinely performing a trephine biopsy along with aspiration for any inexplicable hematological abnormalities is crucial for establishing the primary diagnosis.