Pollution is the introduction of harmful contaminants into air, water or soil. These contaminants can have dire effects on entire ecosystems, making life more difficult for humans, plants and animals.
What Causes Pimples under the Armpits? Actually, pimples, wherever they are, are occurred due to similar causes. The causes can be sweat, dirt, dust, bacteria, hormone, your bad psychology condition and some others. Besides, the use of wrong deodorant or body soap can also be another factor if there is underarm pimple.
Bacteria. Many types of bacteria can cause infections which are localized in the breast or arm and can drain into glands positioned underarms. This causes infections which lead to the lumps under the armpit. For instance, Bartonella Henselae is a bacterium that can cause swollen lymph nodes under the armpit.