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Doctor insights on: Cause Of Sudden Painless Large Blood Clots In Bloody Urine

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Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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Blood in urine one day (also in semen) few days later blood clots in urine. Er doc said may have ruptured blood vessel. No pain whatsoever, worried.

Blood in urine one day (also in semen) few days later blood clots in urine.  Er doc said may have ruptured blood vessel.  No pain whatsoever, worried.

Possibly...: Could be a ruptured blood vessel, more likely in the prostate gland. Depending on your age and use of tobacco, if this recurs, it should be evaluated by a urologist (if over 35 y/o) or a nephrologist. Probably not serious if one time occurrence and no pain with urination or ejaculation. ...Read more

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Blood in urine after bowel movement. Had rad. Prosect. 6 1/2 weeks ago. Passed 2 blood clots today. Any need for conern?

Blood in urine after bowel movement. Had rad. Prosect. 6 1/2 weeks ago. Passed 2 blood clots today. Any need for conern?

Unlikely: You are still well within the normal healing period when your body can pass clots. As long as you are not developing new pain, fevers or continuous severe blood in urine, you are likely ok. If it persists or you remain concerned contact your urologist to discuss. ...Read more

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How much blood in urine is normal after deflux surgery? I went pee and passed some red blood and blood clot about the size of a dime.

How much blood in urine is normal after deflux surgery? I went pee and passed some red blood and blood clot about the size of a dime.

Blood after surgery: You just had surgery on your urinary tract. It is expected that you will have some blood and as you heal the amount of blood will decrease. For pain make sure that you use tylenol, (acetaminophen) NOT one of the NSAIDs, as they interfere with ability of platelets to clot. Speak to the urologist to get an average figure but as long as you see it getting lighter in color that is good! ...Read more

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Blood Clot and Blood in Urine and pain in Penis, High Bubbles in Urine after cystoscopy Male? How to heal? Is it normal?

Blood Clot and Blood in Urine and pain in Penis, High Bubbles in Urine after cystoscopy Male? How to heal? Is it normal?

Heal: No it is not normal but surely your doctor has described everything to you and helped you start improving from your symptoms. If the doctor has not treated as you would like, have a friend refer you to a different doctor. Please let me know how things go. ...Read more

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What may cause male to pass blood and large blood clots in urine with burning?

What may cause male to pass blood and large blood clots in urine with burning?

Blood in the urine: It can be a number of different conditions. Urinary tract infection, stones, tumors in the urinary tract, etc, to name a few. Recommend seeing a provider to get the proper studies to determine the etiology of this. ...Read more

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What causes blood clots in urine after heavy lifting?

What causes blood clots in urine after heavy lifting?

Needs 2B checked: Blood in urine, hematuria, is always considered as possible symptom/sign of possible cancer. ...Read more

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Blood clots urine this am; sm amt blood now +clots gone; no pain/symptoms; no meds; good health; HEAVY lifting recently; rigorous sexlife; no insuranc?

Blood clots urine this am; sm amt blood now +clots gone; no pain/symptoms; no meds; good health; HEAVY lifting recently; rigorous sexlife; no insuranc?

Hematuria: Blood in your urine is always a serious sign. Please get examined and have a urine analysis and culture. Avoid any/all heavy exertion and flush your kidneys with 8-10 glasses of water daily. You must be seen and evaluated. ...Read more

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What causes fever and blood clots in urine?

Infection?: Probably this is a sign of an infection in the urinary tract, or possibly a stone. I advise you to see your doctor as soon as possible. ...Read more

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Does Nephrostomy catch all urine or only urine that is backed up? Are large tissue blood clots normal 3 days post op? Can Hydronephrosis still happen?

Does Nephrostomy catch all urine or only urine that is backed up? Are large tissue blood clots normal 3 days post op? Can Hydronephrosis still happen?

Yes that kidney: Well functioning nephrostomy will drain all the urine produced by that kidney , depending on the diagnosis ( what is causing the obstruction to ureter ) some bleeding possible . Hydronephrosis is due to obstruction , when it is cleared it will get corrected Speak to your doctor ...Read more

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I got unknown cause hematuria i was told to write what days i had blood clots and what i did and i noticed i get it same day i ejaculate, coincidence?

I got unknown cause hematuria i was told to write what days i had blood clots and what i did and i noticed i get it same day i ejaculate, coincidence?

Hematuria: Blood in the urine can because by many different things. Any part of the urinary tract from the kidneys to the bladder to the prostate can cause this. Is there any history of trauma? Do you notice any masses in your testicles? You should be evaluated by a physician. ...Read more

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Blood clots in urine have stent from narrow ureter due to tumor. Clots passing are painful and blocks my urine. What could be the cause?

Blood clots in urine have stent from narrow ureter due to tumor. Clots passing are painful and blocks my urine. What could be the cause?

Several causes.: The presence of a stent in the urinary tract can cause irritation to the lining of the ureter and bladder causing bleeding. Tumors, besides obstructing, can bleed if they cause any erosion of the ureteral lining. If you are passing large clots and blood, a known risk of stents is the development of a communication between a blood vessel and the ureter. Please see your physicians for evaluation. ...Read more

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My 4 year old son had few blood clots in his urine and itching around his anus and his penis. What is wrong? He has no pain anywhere just itching

My 4 year old son had few blood clots in his urine and itching around his anus and his penis. What is wrong? He has no pain anywhere just itching

Those : Those symptoms sound concerning for inflammation or infection. The blood clots are concerning especially. Please have your pediatrician see him immediately for an evaluation of the hematuria and itching. ...Read more

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Blood clots in urine today, 3 pees. 4th & 5th urination no clots; drips of blood urine, slight tingle. Strenuous labor/moved fence. No pain. HPV pos?

Blood clots in urine today, 3 pees. 4th & 5th urination no clots; drips of blood urine, slight tingle. Strenuous labor/moved fence. No pain. HPV pos?

See a doctor: It is unlikely that the exercise caused this. It could be a bladder infection, a stone, or even a cancer. It definitely needs to be evaluated. Hope this helps and that you will be well ...Read more

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Blood in urine after sexual intercourse in a male. My boyfriend and I have been having intercourse for about 2 months now and the past few times he has had blood in his urine afterwards. He has stated there has been clots but no pain like a UTI would brin

Blood in urine after sexual intercourse in a male. My boyfriend and I have been having intercourse for about 2 months now and the past few times he has had blood in his urine afterwards. He has stated there has been clots but no pain like a UTI would brin

Blood : Blood in urine could occur as a result of trauma or a medical condition. Throughout the genitilia, there are many areas and blood vessels that could be broken, leading to blood in the urine or semen. Items that could cause trauma and blood in the urine could be aggressive sex or masterbation, interrupted sex, kidney stones, prostatitis or a procedural biopsy on the testicles/kidney/bladder. Medical conditions that can cause blood in the urine include: side effects of blood thinners, stds such as chlamydia/genital herpes/warts, prostate cancer or bladder cancer. Since this is an ongoing condition for your boyfriend, it is suggested that he see his doctor to determine what the cause is. If there is an infection or trauma going on, it is important to get it assessed. ...Read more

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I ran a half marathon race. Later that day, there was blood and blood clots in my urine. Why might this happen?

Running: can occasionally cause direct trauma to the kidney. This will result in blood in the urine. It should pass in 24-48 hours. If it doesn't, see a urologist. Hope this helps! ...Read more

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My husband has blood in sperm and urine with blood clots. It is only my 1st morning urine.

My husband has blood in sperm and urine with blood clots. It is only my 1st morning urine.

He needs to see a: Urologist for a comprehensive check up to include urine test, sonogram of bladder and kidney, prostate exam, possible cystoscopy & get checked for inflammation, infection, tumor of bladder, prostate, testes, kidneys etc. Hopefully he feels better soon! ...Read more

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My husband had prostrate surgery in march 2011 and has now started passing black blood clots in his urine?

My husband  had prostrate surgery in march 2011 and has now started passing black blood clots in his urine?

Please be evaluated: Your husband should be seen by his urologist. This is likely a benign, and non cancerous, concern but one that should be evaluated with a cystoscopy at the very least. ...Read more

Dr. Michael Michaels
630 doctors shared insights

Blood In Urine (Definition)

Hematuria is the presence of blood in the urine. When you can see the blood, it's called gross hematuria. When the blood can only be seen under a microscope it is known as microscopic hematuria. Hematuria can be caused by kidney stones, kidney infections, urinary tract infections, an enlarged prostate, cancer, certain medications, and ...Read more


Blood Clot (Definition)

A blood clot or thrombus is the final step of the coagulation cascade. It is a good thing when your body is trying to stop blood loss, however a blood clot can form in the veins after prolonged periods of immobility. This type of like ...Read more