Various staining techniques are utilized to enhance the appearance of tissues. Some of the most common stains include:
Hematoxylin and Eosin (H&E): This is the most widely used stain, where hematoxylin stains nuclei blue and eosin stains cytoplasm and extracellular matrix pink. Periodic Acid-Schiff (PAS): Stains carbohydrates and mucopolysaccharides magenta. Masson's Trichrome: Differentiates between collagen (blue or green), muscle (red), and nuclei (black).