METHOD AND COMPOSITION FOR PREVENTING, TREATING OR RELIEVING BONE DISEASES OF THE DISCLOSURE The present invention discloses uses of treating, preventing or improving bone diseases by Lactobacillus or a composition including the Lactobacillus . The Lactobacillus and compositions can increase the blood calcium concentration, the trabecular bone volume density (BV/TV ratio), the trabecular thickness (Tb.Th), the trabecular number (Tb.N) and the bone mineral density (BMD) of a subject, and reduce trabecular spacing (Tb.Sp) of the subject. Figure 1