PfcAJ
Contributor
Emphasis mineUnless there is some abnormal pathology in the outer ear canal, it is impossible for water to trap in the outer ear canal when you stand up. /snip/ The sensation of "water in the ear" is a sysmptom of injury or damage to the middle ear. Which can not get water into it, typically, unless the integrity of the typanic membrane has been compromised, ie: ruptured, torn, or perferated in some way. When you get a sensation of water running around in the ear you are actually "hearing" the fluid moving around in the semi-circular canal structure housed in the inner ear. /snip./
Its a shame that in your copious amounts of experience you haven't learned to treat the PATIENT, not the symptoms. Take a history. Heres some easy physics for you.
If you remove the air in the outer ear (thats the part OUTSIDE the eardrum) and replace it with water (like what would happen with scuba diving), the water can stay there for a good while. The ear isn't damaged, water is trapped due to weak hydrogen bonds in liquid water that give it a surface tension that can't be broken by the weight of the water alone. I can simulate this with a straw and a cup of water.
Now, if your patient HASN'T been diving, swimming, etc, complains of pain and typically "fullness" in the ear, then I'll agree with you that it might be a collection of fluid in the middle ear (between the eardrum and oval window). This is all before an exam ever takes place and based on a very weak history. Of course, more detailed examination and history is needed before any conclusion can be made.
Saying that anytime a person has a sensation of "water in the ear" is indicative of damage is flat out wrong, and you are doing a disservice to the memebers of SB by pontificating such erroneous information.