Chemical changes involve chemical reactions and the creation of new products. Typically, a chemical change is irreversible. In contrast, physical changes do not form new products and are reversible.This is a list of more than 10 examples of chemical changes. rusting of iron. combustion (burning) of wood.
Sometimes, what seems to be testicle pain is caused by a problem that starts in the groin, abdomen or somewhere else â for example, kidney stones and some hernias may cause testicle pain. The cause of testicle pain can't always be identified. Causes of testicle pain or pain in the testicle area can include: 1  Diabetic neuropathy (nerve damage caused by diabetes) 2  Epididymitis (testicle inflammation)  Gangrene (specifically, a type of gangrene called Fournier's gangrene)
You are here. Testicular Pain. Testicular Pain. Testicular pain may occur in one or both testicles, the male sex organs that lie in the scrotum. Pain may originate in the testicle or nearby parts of the reproductive tract, or it may be caused by a problem elsewhere in the abdomen, such as kidney stones or a hernia.