What are the disadvantages of marker pen?

Marker pens can have several disadvantages, including the potential for ink bleeding through thin paper, which can ruin the surface beneath. They often dry out quickly if not capped properly, leading to wasted resources. Additionally, many markers contain solvents and chemicals that can produce strong odors and may not be suitable for use in confined spaces. Lastly, some inks are not water-resistant, making them susceptible to smudging or fading when exposed to moisture.