Will a kidney stone always be noticeable in urine?

No. Not all kidney stones pass in the urine. Some kidney stones can dissolve or breakdown in the bladder before passing in the urine. Others can remain present but never pass. See your urologist if you are concerned.
No. Kidney stones may not always be noticeable in urine. Some other signs of stone disease other than actually seeing a stone may be frequent urinary tract infections, blood in the urine, or flank pain.

Related Questions

What to do if I just passed my first kidney stone, now my urine is brown. Is this normal?

Altered renal blood. Quite common with or after passing kidney stone. Should clear up soon. Please keep your dr informed if it continues. Blood in urine is never normal and often not serious. Read more...

I'm 32 yr old I have kidney stone and from last 2 days blood is cuming while urine?

Blood in urine. With hematurea, i would recommend having that checked & soon. Read more...
Evaluation. You did not mention size &location of stone.The blood in urine needs to be evaluated by CT-ivp with contrast to make an accurate diagnosis before deciding on treatment.Call your doctor to be evaluated and you may be referred to a urologist.Best wishes. Read more...