The cause of muscle cramps isn't always known. Muscle cramps may be brought on by many conditions or activities, such as: 1  Exercising, injury, or overuse of muscles. 2  Pregnancy. 3  Cramps may occur because of decreased amounts of minerals, such as calcium and magnesium, especially in the later months of pregnancy.
Causes of Otitis externa. Causes of Otitis externa. Otitis externa is caused by a bacterial or viral infection in the external part of the ear canal. A common bacterial pathogen is Pseudomonas aeruginosa. List of causes of Otitis externa. Otitis externa Causes: Risk Factors.
Otits externa is inflammation of the auditory canal. This is also mainly is caused by bacteria as well, but fungus can cause ~10% of these infections. This infection can be seen by just looking in the ear. Itching, discomfort, and change in hearing can be symptoms. Often pain will be drastically increased with moving the ear.