Is here anything x-ray cannot detect?
Answer:
X-ray is really best at looking at bony structures. Its usually the first radiology test explicitly ordered and then other test can be ordered if the doctor doesn't find what's he's looking for. CT (cat scan), Ultrasoud, MR (MRI), Nuclear Medicine tests, Fluoroscopy and Angiography are some examples.
Of course x-rays can not detect tons things. that is why here are many other option like sonograms and blood test. don't just rely on x-rays. if you have a feeling something was not detected, follow your instincts.
LOTS of things. It can't find a blood clot. It can't detect a heart attack. It can't communicate if your gall bladder is functioning usually.
The list go on and on.
There are many diagnostic imaging studies that can be done, and respectively has its own benefits and limitations.
Within your body, X-ray can see lone the bones. It passes through everything else.
You can drink or inject an X-ray contrast medium to view secure other organs in the body.
At the present time, MRI is the most powerful and most expensive imaging tool.
In pregnancy etc., you use ultra nouns imaging which is relatively harmless to the mother and the fetus.