In wet cupping (Hijama), cups are specifically designed to create suction on the skin before and after small incisions are made to draw out blood. The most commonly used types are glass cups, which rely on heat (fire) to create suction, and plastic cups, which use a manual or electric pump for a safer, more controlled vacuum—making them ideal for both clinical and home use. These cups come in various sizes to suit different body areas, feature rounded edges to ensure a strong seal, and have valves or openings for easy suction control and release.