5 doctors weighed in:

If my bloody urine is caused by cancer, would there be cancer cells in the urine too?

5 doctors weighed in
Dr. Jesse Mills
Urology
3 doctors agree

In brief: Maybe

Transitional cell carcinoma can be detected by urine cytology but it's not 100% sensitive.
Other cancers such as breast or lung cancer will most likely not show up in the urine. Blood in the urine can be caused by many other things including chemotherapy for other cancers. Let your doctor know you have blood in the urine.

In brief: Maybe

Transitional cell carcinoma can be detected by urine cytology but it's not 100% sensitive.
Other cancers such as breast or lung cancer will most likely not show up in the urine. Blood in the urine can be caused by many other things including chemotherapy for other cancers. Let your doctor know you have blood in the urine.
Dr. Jesse Mills
Dr. Jesse Mills
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In brief: Malignant cells

If your hematuria is secondary to bladder cancer, malignant cells may be present in the urine.
However, a urine cytology (a lab test that looks for malignant cells in the urine) may not always be positive even when bladder cancer is present. This may be due to a number of factors including having a lower grade tumor.

In brief: Malignant cells

If your hematuria is secondary to bladder cancer, malignant cells may be present in the urine.
However, a urine cytology (a lab test that looks for malignant cells in the urine) may not always be positive even when bladder cancer is present. This may be due to a number of factors including having a lower grade tumor.
Dr. Howard Adler
Dr. Howard Adler
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