This type of ear infection is called otitis media. It usually requires antibiotic treatment in order for resolution to occur. However, with recurrent infections, especially in young children, tubes...
Though it is very difficult to cause rupturing of eardrum, physical impact, High frequency sounds, health issues, genetic defects are most probable causes.
Osmotic and oncotic pressure are the major ways the body holds onto fluids. Are you asking about the body holding excessive fluid?
Heart failure and kidney failure are the two biggest contributors...
A punctured eardrum causes temporary loss of hearing and temporary inablility to balance. The inability to balance is what contributes the most to the effectiveness of artillery shelling and...