Dysuria: Pain or Burning When Passing Urine
Reviewed by Dr C. J. Odike, MRCGP
You may assume that pain when passing urine always means a bladder infection and always needs antibiotics. A urinary tract infection is common, but burning can also come from the urethra, prostate, skin, vagina, stones, irritation or a sexually transmitted infection. The safest response depends on your age, anatomy, pregnancy status, accompanying symptoms and overall health.
Dysuria means pain or burning during urination Dysuria means pain, burning or stinging while passing urine. You may feel it at the opening where urine leaves the body, along the urethra, behind the pubic bone, over irritated genital skin, near the end of urination, or throughout the urinary stream. The position and timing can provide clues, but they cannot reliably diagnose the cause. The urinary tract has several connected parts The urinary tract includes two kidneys, which make urine. Two ureters, which carry urine to the bladder. The bladder, which stores urine. And the urethra, which carries urine out of the body. An infection may affect the bladder or urethra, producing a lower urinary tract infection. Infection reaching one or both kidneys is called an upper urinary tract infection or pyelonephritis. A lower urinary tract infection is a common cause Symptoms that may occur with a lower UTI include pain or burning when passing urine, passing urine more often, sudden urgency, passing small amounts, lower abdominal discomfort, cloudy urine, blood in urine, or new night time urination. A UTI cannot always be diagnosed from one symptom. Cloudy or strong smelling urine alone may reflect concentration, food or other factors rather than infection. Kidney infection causes a more systemic pattern A kidney infection may cause pain in the back or side beneath the ribs, fever, shivering, nausea or vomiting, marked weakness, feeling generally very unwell, and urinary symptoms. Kidney infection usually results from bacteria travelling upwards from the bladder. It needs antibiotic treatment and may require hospital care when you are severely unwell, unable to take fluids or at higher risk of complications. Burning can come from outside the urinary tract Urine passing over inflamed genital skin may sting even when the urine itself is not infected. Possible causes include vulval or vaginal irritation, thrush, dermatitis, menopause related dryness and inflammation, irritation from soaps or fragranced products, balanitis affecting the head of the penis, or minor skin injury. Clues may include itching, redness, soreness, discharge or pain mainly when urine touches the skin. A urine test may be normal because the problem is external rather than within the bladder. Urethritis may be sexually transmitted Urethritis is inflammation of the urethra. It may be caused by a sexually transmitted infection or another inflammatory process. Possible features include burning while passing urine, discharge from the penis or vagina, genital discomfort, pelvic pain, bleeding after sex, or symptoms following a new sexual contact. Some sexually transmitted infections cause few or no additional symptoms. Do not assume that dysuria proves infidelity or a particular infection. Appropriate testing, confidential discussion and treatment of relevant partners may be needed. Prostatitis can cause pain and urinary difficulty If you have a prostate, prostatitis may cause burning or pain when passing urine, difficulty starting urine, frequency or urgency, pain in the pelvis, genitals, perineum or lower back. Pain during or after ejaculation, fever or shivering in acute infection, or inability to pass urine. Acute prostatitis can be serious and requires urgent medical assessment. Stones may cause severe pain and blood A urinary stone may irritate the lining of the kidney, ureter, bladder or urethra. Possible symptoms include severe pain in the side or back, pain travelling towards the groin, nausea or vomiting, blood in urine, urgency or burning, or restlessness during waves of pain. A stone can also obstruct urine or occur alongside infection. Fever with suspected stone disease requires urgent assessment. Medicines and treatments can irritate the urinary tract Dysuria may follow urinary catheterisation, a bladder procedure, pelvic radiotherapy, certain cancer treatments, medicines that alter urine composition, or recent surgery. Tell the clinician about recent procedures and all medicines. Pain after a procedure may be expected for a short period, but worsening pain, fever, inability to pass urine or increasing blood requires assessment. Children may show indirect signs Older children may describe burning or pain. Younger children may cry during urination, refuse to pass urine, develop frequency, start wetting after being dry, have abdominal pain, develop fever, feed poorly, become irritable, vomit, or have foul smelling or bloody urine. Urine testing is recommended when symptoms increase the likelihood of UTI, including dysuria, frequency, new bedwetting, fever, visible blood or abdominal and loin tenderness. Babies under 3 months require urgent specialist care A baby under 3 months with suspected UTI should be referred immediately for paediatric assessment and urgent urine testing. Very young babies may not have clear urinary symptoms. Poor feeding, unusual sleepiness, temperature change, irritability or reduced responsiveness may be the main signs. Constipation can contribute in children A full bowel can press on the bladder and interfere with coordinated emptying. Constipation may contribute to frequency, urgency, wetting, holding urine, recurrent UTI, or abdominal pain. Addressing constipation and dysfunctional voiding is recommended in children who have had a UTI. Painful urination in pregnancy needs prompt assessment Pregnancy increases the importance of detecting and treating urinary infection because infection is more likely to spread or cause complications. If you are pregnant and develop burning, blood in urine, lower abdominal pain, fever or back pain, contact your maternity team, GP or NHS 111 promptly. A urine culture and immediate antibiotic treatment is recommended when a pregnant person has a lower UTI, with the antibiotic reviewed when culture results become available. Frequency alone is common in pregnancy. Frequency accompanied by pain, blood, fever or feeling unwell should not be dismissed as a normal pregnancy symptom. Symptoms after childbirth also require attention After childbirth, urinary burning may relate to a UTI, catheter irritation, perineal tears or stitches, vulval swelling, or difficulty emptying the bladder. Tell the maternity team if you cannot pass urine normally, feel no bladder sensation or pass only very small amounts. Postnatal urinary retention can overstretch the bladder and requires prompt assessment. Dysuria in older adults needs careful interpretation Older adults may have several possible contributors, including UTI, genital tissue changes after menopause, prostate enlargement, retention, stones, medicines, reduced mobility, or inadequate fluid intake. Bacteria can sometimes be found in urine without symptoms. This is called asymptomatic bacteriuria. It is not routinely treated with antibiotics in men or non pregnant women because treatment does not provide benefit and can cause adverse effects and antibiotic resistance. New confusion can accompany serious infection, but confusion alone does not establish that the urine is the source. Clinicians should consider medication effects, dehydration, pain, constipation and other infections. Urine testing must be interpreted with symptoms Possible tests include urine dipstick testing, urine microscopy, urine culture and antibiotic susceptibility testing, pregnancy testing where relevant, tests for sexually transmitted infections, blood tests, and imaging if stones, obstruction or repeated infection are suspected. A urine dipstick can detect substances such as blood, leucocytes and nitrites. Its meaning depends on your symptoms, age and circumstances. Pregnant people and men with suspected lower UTI should usually provide a midstream urine sample for culture before antibiotics when this can be done without delaying treatment. Antibiotics are not always needed Antibiotics treat bacterial infection. They do not treat thrush, dermatitis, most genital irritation, stones, non infectious prostatitis, overactive bladder, or all urethritis without identifying the cause. For some non pregnant women with uncomplicated lower urinary symptoms, clinicians may discuss immediate or delayed antibiotic treatment depending on symptom severity and risk. Immediate antibiotics are recommended for pregnant people, men, and children aged 3 months to under 16 with diagnosed lower UTI. Babies under 3 months with suspected UTI require immediate paediatric assessment rather than routine primary care antibiotics. Improvement should begin after treatment When antibiotics are prescribed, seek reassessment if symptoms worsen at any time, you become generally very unwell, symptoms do not begin improving within 48 hours, or new back pain, fever or vomiting develops. Reassessment is recommended for these patterns because resistant bacteria, kidney infection or another diagnosis may be present. Do not use leftover antibiotics. An old or borrowed antibiotic may be unsuitable for the likely organism, unsafe in pregnancy, interact with another medicine, partly suppress symptoms without treating the infection, or increase antibiotic resistance. Complete a prescribed course according to the instructions unless the prescriber changes it. Fluids, genital products and recurrent symptoms Drink enough to avoid dehydration unless you have been given a fluid restriction. Very large amounts of fluid will not reliably clear an infection and may increase urgency or discomfort. Dark concentrated urine can sting. Regular moderate fluid intake may reduce irritation while you await assessment. Avoid repeatedly using fragranced washes, bubble baths, deodorants, antiseptics, harsh soaps, or unprescribed topical treatments. Use gentle external washing. Do not place products inside the vagina or urethra unless prescribed. Repeated dysuria may be caused by recurrent UTI, incomplete bladder emptying, stones, genital tissue inflammation, prostate disease, sexual infection, bladder pain syndrome, or structural urinary problems. A recurrent pattern should not be managed indefinitely through repeated untested antibiotics. The clinician may review urine cultures, anatomy, medicines, menopausal symptoms, sexual health and bladder emptying.
Dysuria describes a symptom, not its cause. A safe assessment asks whether the burning is felt internally, externally or both, whether there are other bladder symptoms, whether the kidneys or whole body are affected, whether there could be genital inflammation or a sexually transmitted infection, whether there is obstruction, a stone or prostate involvement, and whether age, pregnancy or another health condition increases risk. The priority is to identify serious infection, urinary obstruction and other causes that need specific treatment.
Medical words made simple
- Dysuria
- Pain, burning or stinging when passing urine.
- Urinary tract infection
- Infection affecting part of the urinary system.
- Pyelonephritis
- Infection of one or both kidneys.
- Urethritis
- Inflammation of the tube that carries urine out of the body.
- Prostatitis
- Inflammation or infection affecting the prostate.
- Urine culture
- A laboratory test that identifies bacteria in urine and which antibiotics may work.
Quick recap
- Burning during urination can come from infection, but also from irritated skin, stones, urethritis or prostatitis.
- Fever with back or side pain suggests kidney infection, not simple cystitis.
- Babies under 3 months with suspected UTI need immediate paediatric assessment.
- Pregnancy needs prompt urine testing and immediate antibiotic treatment for any suspected UTI.
- Asymptomatic bacteria in urine usually isn't treated in non pregnant adults treatment offers no benefit and risks resistance.
- If symptoms haven't improved within 48 hours of antibiotics, seek reassessment rather than waiting longer.