Tissue examination is a process used in medicine to analyze samples of body tissues. This examination helps in diagnosing diseases, understanding the nature of tumors, and assessing the effects of treatments. Pathologists often perform this analysis using techniques like microscopy to observe the structure and composition of the tissues. During tissue examination, samples may be taken through procedures such as biopsies or surgeries. The collected tissues are then processed and stained to highlight specific features. This allows for a detailed evaluation of the cells and their arrangement, aiding in identifying conditions like cancer or infections.