Histology can diagnose a multitude of conditions, including: - Cancer: By identifying abnormal cell growth and tissue architecture. - Inflammatory Diseases: Such as Crohn's disease and ulcerative colitis. - Infectious Diseases: Like tuberculosis and viral infections. - Degenerative Diseases: Such as Alzheimer's disease and Parkinson's disease. - Autoimmune Disorders: Including lupus and rheumatoid arthritis.