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Doctor insights on: What Is Flank Pain In Kidney Infcetion

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Constant flank pain on left side. Hurts to sit and lean on back. Possibilities other than kidney infection?

Constant flank pain on left side. Hurts to sit and lean on back. Possibilities other than kidney infection?

L loin pain: Brooke T ~ kidney stones, UTI, ectopic pregnancy, kidney tumors (angiomyolipomata), intra renal stones, obstruction of the kidney hydronephrosis, abscess formation, pregnancy, other renal tumors, renal infarction, blunt and penetrating trauma, severe ptosis of kidney, extra renal compression, retro-peritoneal fibrosis, pancreatitis bowel obstruction ~ see a doctor...!
:-)) ...Read more

Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


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I've been having low back and flank pain on my right side and my creatinine level is 16.9. Is this kidney infection?

I've been having low back and flank pain on my right side and my creatinine level is 16.9. Is this kidney infection?

Unlikely: The creatinine level indicates significant kidney disease that would have to affect both kidneys (did you mean bun/cr ratio?). Infection usually affects only one or the other. If there is already underlying kidney problems, then infection could worsen things. Difficult to provide more insight without more information. ...Read more

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Diagnosed with kidney stones! Flank pain. Is it possible to have this going on without infection?

Diagnosed with kidney stones! Flank pain. Is it possible to have this going on without infection?

Yes: If one of your kidneys stones moves into the ureter (the tube connecting the kidney to the bladder) it can cause flank pain. This is what is commonly referred to as passing a kidney stone. ...Read more

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How long does it take for the flank pain from a kidney infection go away? Only have 2 days of amoxicillin left and it's not as bad but still hurts

How long does it take for the flank pain from a kidney infection go away? Only have 2 days of amoxicillin left and it's not as bad but still hurts

Varies: I would drink more fluids in the meantime to help flush out your kidneys. Stagnant water the enemy. Your kidney likes to have liquid to filter. ...Read more

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I am in the hospital right now with a severe kidney infection. The only medication that helps the flank pain makes me itch terribly. What is the max?

I am in the hospital right now with a severe kidney infection. The only medication that helps the flank pain makes me itch terribly. What is the max?

Ask your doctor. ..: You should ask the attending doctor who is treating you because s/he knows more about your individual conditions than anyone online. Severe itch may be a sign of drug allergy, and the doctors will periodically, at least once daily, reassess your clinical response so to adjust treatment as needed. ...Read more

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I have right sided back/flank pain. How do I know when to go to the doctor for possible kidney infection or to wait it out?

I have right sided back/flank pain. How do I know when to go to the doctor for possible kidney infection or to wait it out?

See below: In general, I would recommend that you see your doctor about this type of pain if it persists for more than a few days, is associated with nausea/vomiting, is accompanied by fever, or if the pain is severe despite over-the-counter pain killers like tylenol (acetaminophen) or motrin. ...Read more

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I'm pretty sure I have a kidney infection. But dr can't see me till Monday is ok to wait or should I go to ER? Right sharp burning flank pain

I'm pretty sure I have a kidney infection. But dr can't see me till Monday is ok to wait or should I go to ER? Right sharp burning flank pain

Depends on severity: If you have fever, back pain, vomiting along with urinary symptoms (burning, frequency) then you may have a kidney infection (pyelonephritis). In that case you should be treated sooner than later. Urgent care would be an option, as would the ER. If you just have pain with urination, you can probably wait to see your doctor. Drink plenty of water, and consider cranberry juice. ...Read more

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What can cause moderate flank pain besides kidney stones and kidney infection?

What can cause moderate flank pain besides kidney stones and kidney infection?

Many things: There are other organs how long the flank the size of kidney including on the left side the spleen on both sides the colon, you have a liver there, the pancreas, and other things. These are things you should discuss with your physician ...Read more

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How long does it usually take an untreated UTI to turn into a kidney infection? Can you have a kidney infection w/o fever, but with ab/flank pain?

How long does it usually take an untreated UTI to turn into a kidney infection? Can you have a kidney infection w/o fever, but with ab/flank pain?

Kidney infection: Generally a Kidney infection is accompanied by a FEVER and some flank pain. Not all UTIs, even untreated will progress to a Kidney infection. There really is not a particular timeline. ...Read more

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Is it true that people with RA can have chest pain with a kidney infection? I prob have a kidney infection, flank pain severe and chest pain severe.

Is it true that people with RA can have chest pain with a kidney infection? I prob have a kidney infection, flank pain severe and chest pain severe.

Anybody: You do not have to have rheumatoid arthritis. See a doctor asap and get this evaluated. Particularly since if you are receiving ustekinumab which is a monoclonal antibody against il 12 and 23 and can predispose to severe secondary infections. Go now and get evaluated. Hope you are better quickly. ...Read more

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What can cause right side flank pain but no ovaries or appendix. Don't have a kidney stone or kidney infection?

What can cause right side flank pain but no ovaries or appendix. Don't have a kidney stone or kidney infection?

Here are some. ..: Right flank pain warns you either something is irritating your local tissues or organs or some disorders in muscles, joints, or nerves along the course of spinal nerve to right flank region. To sort these things out is not that difficulty by systemically analyzing the onset, degree, duration, interval, evolution, & progress of the pain and its possible related Sx over time + conducting physicals. ...Read more

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Sharp burning right side flank pain no kidney infection or stone no ovaries or appendix please name specifc possibilities that could be wrong?

Flank pain: Hi, muscle spasm, Rib pain, inflammation of membrane around the lung, lung inflammation, Radiculitis, injury to the costovertebral junctions and Retroperitoneal fibrosis are some possibilities amine others. ...Read more

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+2w Kidney stone & infection. Dr. gave 7d of Cipro (ciprofloxacin) last week, but still have some flank pain, cloudy urine (floating specks), small stones. What next?

+2w Kidney stone & infection. Dr. gave 7d of Cipro (ciprofloxacin) last week, but still have some flank pain, cloudy urine (floating specks), small stones. What next?

Continue Rx and f/u: If there is obstruction and infection with kidney stone it is a potentially serious even life threatening problem. Both the obstruction and infection need to be treated and eliminated. US or other imaging can diagnose and confirm resolution of obstruction. F/u urine testing and culture can diagnose and confirm resolution of infection. ...Read more

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I've been on cipro (ciprofloxacin) for 3 days for left kidney infection I'm still having a lot of left flank pain especially to touch, was told I passed a stone also?

Maybe, and may not..: Analyzing the onset, degree, duration, and interval of flank pain plus physicals with or without imaging study can almost always confidently deduce a DX of stone/colic, uti, or mucsle pain, although flank pain has been oftentimes manged with antibiotics by some. If really for kidney infection, the duration of antibiotics would be 2 weeks at least; for bladder, 3 days. Detail? Ask doc timely. ...Read more

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Sharp right flank pain but no back pain no ovaries or appendix not kidney stone or infection so what are other possibilities? Pain keeps me up at nigh

Sharp right flank pain but no back pain no ovaries or appendix not kidney stone or infection so what are other possibilities? Pain keeps me up at nigh

See answer: Based on the exclusions in your question and assuming kidney problem has been ruled out by urinalysis and CT scan, most likely cause of your rt-sided flank pain is a neuromusculoskeletal problem: back muscle strain/sprain; radiculitis affecting the lower thoracic/upper lumbar nerve roots; pre-skin eruption shingles (herpes zoster); or rib fracture. Other possible causes: lung, liver, gall bladder ...Read more

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Been on cipro (ciprofloxacin) recpen last day of amoxil for kidney infection still have flank pain and cloudy urine if infection still there should I be admitted?

Been on cipro (ciprofloxacin) recpen last day of amoxil for kidney infection still have flank pain and cloudy urine if infection still there should I be admitted?

Probably: Best thing is to reach out and call your doctor. If you go to an er who does your urine test, blood test and temperature, they can also call your doctor after that. If you still have a white count, fever, and dirty urine, they will admit you. ...Read more

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Right flank pain during period and woke up with symptoms of a uti. Kidney infection or radiating period cramps?

Get checked?: What symptoms of a UTI are you having? If you are noting blood in urine, pain with urination, or fever this is likely a urinary tract infection. I would see a physician for a urine test for a definitive answer. ...Read more

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No uti. No kidney infection. Flank pain present. Freq/urgency felt. Symptoms for 1 month. Sometimes feel pain in groin. Mucus noticed in urine.?

No uti. No kidney infection. Flank pain present. Freq/urgency felt. Symptoms for 1 month. Sometimes feel pain in groin. Mucus noticed in urine.?

Flank pain: F 34 from US: notes: no uti. No kidney infection. Flank pain present. Freq/urgency felt. Symptoms for 1 month. Sometimes feel pain in groin. Mucus noticed in urine.? ANS: If I were ur Dr would ask u about family/personal Hx of kidney stones & do a good history and exam again looking for cause. ...Read more

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Flank pain on right side right under ribs for a week so far. More frequent urination. Hurts to cough or even lay on that side. Is it kidney infection?

Flank pain on right side right under ribs for a week so far. More frequent urination. Hurts to cough or even lay on that side. Is it kidney infection?

Could be: A urine test will help. Seeing a doctor will allow them to get more detailed history and a physical exam which will help differentiate between other things as U may have a kidney stone instead. Hydrate well in the meantime ...Read more

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I have a kidney infection that won't go away been on meds. Bad left flank pain swollen lymph nobs n now my eyes r bloodshot. And I m always tired. Why?

I have a kidney infection that won't go away been on meds. Bad left flank pain swollen lymph nobs n now my eyes r bloodshot. And I m always tired. Why?

Bloodshot eyes: There are diseases which can cause kidney issues and eye inflammation. I would recommend seeing an eye doctor to rule out a serious eye problem. Patients with kidney diseases can have low blood numbers which can results in fatigue. I would recommend close followup with a kedney doctor as well. ...Read more

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Kidney infection cipro (ciprofloxacin) day 5 of 10. Temp 38.3 still present. Flank pain and severe pressure over area not responding to OTC mess...Nausea vomit 2x?

Kidney infection cipro (ciprofloxacin) day 5 of 10. Temp 38.3 still present. Flank pain and severe pressure over area not responding to OTC mess...Nausea vomit 2x?

Urosepsis: Pain and severe pressure with temp is serious infection. May be stone or obstruction. Need us of abdomen ; pelvis and see urologist or go to er. ...Read more

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Left side flank pain no fever no urgency to pee just pain radiates from side to lower back could it be kidney infection?

Unlikley: Common causes of one-sided flank pain are often either urological (kidney infection or stone) or musculoskeletal (back strain or sprain) in origin. Kidney infection usually associated with fever, chills, and feeling ill with or without urinary symptoms. Kidney stone usually associated with mild-to-severe pain, nausea, possible vomiting. Urinalysis next best test: if normal, not likely UTI or stone ...Read more

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Rare bacteria moderate mucous snd protien in urine flank pain normal CT so what else could be wrong? Just got off meds for kidney infection

Rare bacteria moderate mucous snd protien in urine flank pain normal CT so what else could be wrong? Just got off meds for kidney infection

?? pyelonephritis: Was ct done with contrast? Could have missed pyelonephritis (pn), even if contrast was used, in absence of any gross changes. Were u on Macrodantin (nitrofurantoin) which sterilizes urine but does not get into the tissues ; thus no good for pn. Need repeat urine culture ; at least 2 weeks on an effective antibiotic as determined by bacterial sensitivities. Good luck. ...Read more

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Just came from hosp- bad flank pain a lot of blood in urine. All my kidney stones still in kidney, no infection in urine & bw came back ok. What could this be? I have to fu with urologist.

Kidney stones: The stones are likely causing damage to the kidneys or urinary tract, resulting in blood in the urine. If you were discharged from the hospital with an outpatient f/u with urology, likely the stones are not causing any significant obstruction. See the urologist on consultation. ...Read more

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Can kidney cysts cause flank pain?

Not usually: Cysts vary in their causes, but most do not cause symptoms unless they become infected, blocked, or very enlarged. ...Read more

Dr. Ira Friedlander
9 Doctors shared insights

Infection (Definition)

Infections are invasions of some other organism (fungus, bacteria, parasite) or viruses into places where they do not belong. For instance, we have normal gut bacteria that live within us without causing problems; however, when those penetrate the bowel wall and enter the bloodstream, ...Read more


Side Pain (Definition)

Side pain = pain / discomfort of the torso ...Read more