If this is a sound wave, the denser the medium, the faster the wave. For a light wave, the denser the medium, the slower the wave. It all depends on the medium through which it travels. The factor of the medium that plays a role on the velocity of a wave is its density. If this is a sound wave, the denser the medium, the faster the wave.
Mastitis is an infection of the tissue of the breast that occurs most frequently during the time of breastfeeding. This infection causes pain, swelling, redness, and increased temperature of the breast. It can occur when bacteria, often from the infant's mouth, enter a milk duct through a crack in the nipple. This causes an infection and painful inflammation of the breast.
April 13, 2009 â Elizabeth Jay. Mastitis â inflammation of the breast tissue â is a common problem for breastfeeding women. Although it can be associated with bacterial infection, this is rarely its primary cause (see milk stasis â not infection â is the main cause of mastitis). Many doctors nevertheless choose to treat it with antibiotics, âjust in caseâ infection is present.