A mucus plug typically looks like thick, sticky mucus that can be jelly-like in texture. It is usually clear, off-white, or slightly cloudy and can sometimes have pink, red, or brown streaks if mixed with blood. The mucus plug may come out as a large clump or in smaller pieces, and it is often odorless. Its size can be around 1 to 2 tablespoons or 1 to 2 inches in length. The plug acts as a protective barrier in the cervix during pregnancy, and losing it is a sign that labor might be approaching. The color variations like pink or brown are generally normal and often indicate cervix changes in preparation for labor. However, bright red or greenish mucus may require medical attention. The mucus plug is thicker and stickier compared to normal vaginal discharge, which is typically thinner and white or light yellow in color.