In this blog, we explain exactly what cystitis is and describe the main symptoms of this condition, before focusing on a range of the most common causes and diagnosis tests. Read on to find out more.
What Is Cystitis? Causes, Symptoms & How to Diagnose It
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Cystitis is inflammation of the bladder — most commonly caused by a bacterial infection in the bladder, known as a urinary tract infection (UTI). It is one of the most common conditions affecting women of all ages in the UK. When caused by bacteria, seeking treatment is important: as well as being painful, untreated bladder infections can spread to the kidneys and become a serious health problem.
However, it is important to understand that cystitis is not always caused by a UTI. Bladder inflammation can also occur when the body reacts to certain medications (particularly chemotherapy drugs such as cyclophosphamide), radiation therapy to the pelvic area, or irritating hygiene and sexual health products such as feminine hygiene sprays, lubricants, and spermicidal jellies.
Is Cystitis a UTI?
Although the terms are often used interchangeably, there is a technical distinction. Cystitis means bladder inflammation and can occasionally have non-bacterial causes. A UTI specifically refers to a bacterial infection anywhere in the urinary tract. In practice, the vast majority of cystitis cases in otherwise healthy women are caused by a bacterial UTI — so the distinction rarely matters clinically.
Can Men Get Cystitis?
While cystitis is primarily a condition affecting women, men can also experience it — though it is significantly less common. Because UTIs in men are more likely to indicate an underlying problem (such as kidney stones, prostate enlargement, or narrowing of the urethra), men with UTI symptoms should seek in-person GP assessment rather than an online consultation.
Men with UTI symptoms should always see a GP in person. Access Doctor’s online cystitis service is designed for adult women with uncomplicated acute cystitis only.
Symptoms of Cystitis
Symptoms of cystitis can vary between individuals, but typically include some or all of the following:
- Needing to urinate more frequently than usual
- Feeling the urge to urinate immediately after emptying the bladder
- A burning or stinging sensation when urinating (dysuria)
- Strong-smelling or cloudy urine
- Blood in urine (haematuria)
- Cramping in the lower back and/or abdomen
- A low-grade temperature (if cystitis is infection-related)
Seek urgent care if you develop nausea and vomiting, stabbing pains in your back, side, or abdomen, or a fever with chills alongside UTI symptoms. These may indicate the infection has spread to the kidneys (pyelonephritis) — a more serious condition requiring urgent treatment.
What Causes Cystitis?
Bacterial UTI
The most common cause — usually E. coli bacteria entering the urethra and multiplying in the bladder. Sexual intercourse, wiping technique, and certain contraceptive methods can increase risk.
Certain Medications
Chemotherapy drugs (cyclophosphamide, ifosfamide) commonly cause bladder inflammation. Other drugs may also irritate the urinary tract as they are excreted.
Radiation Therapy
Radiation to the pelvis or lower abdomen can irritate the bladder lining, causing radiation cystitis alongside its intended effects on cancer cells.
Hygiene Products
Feminine hygiene sprays, scented gels, lubricants, spermicidal jellies, and even concentrated bubble bath can irritate the urethra and bladder in susceptible women.
Sometimes cystitis occurs as a complication of another medical condition — kidney stones, long-term spinal injuries, diabetes, prostate enlargement, or HIV can all contribute.
Can Stress Cause Cystitis?
There is no direct evidence that stress itself causes cystitis. However, chronic stress is associated with a weakened immune system — meaning that if your immune defences are reduced, you may be more vulnerable to infections, including bacterial UTIs. Some women also report that emotional stress appears to trigger or worsen symptoms, though the precise mechanism is not fully understood.
How to Diagnose Cystitis
If you are concerned you have cystitis, speak to your GP or a healthcare professional. Diagnosis typically involves:
- Urine sample test — the first-line test. Checks for bacteria, blood, or pus. A positive result for bacteria may prompt a culture test to identify the specific organism and guide antibiotic choice.
- Cystoscopy — used if no bacteria is found but symptoms persist or cystitis is recurrent. A thin tube with a camera is inserted via the urethra to examine the bladder lining. A biopsy may be taken.
- Imaging — rarely needed. Ultrasound or X-ray can identify unusual causes of bladder inflammation such as tumours or structural abnormalities.
What to Do When You Have Cystitis
If you think you have cystitis, the immediate steps are to drink plenty of water and take paracetamol or ibuprofen for pain relief. If symptoms persist beyond 24 hours, seek medical advice. Access Doctor offers a convenient online consultation — reviewed by GPhC-registered pharmacist independent prescribers — with nitrofurantoin or trimethoprim dispatched for next-day delivery if appropriate.
For a full guide to treatment options, see: Cystitis Medicines: What to Take?
💊 NICE First-Line Antibiotic
Nitrofurantoin (Macrobid)
MHRA-approved first-line antibiotic for cystitis & UTIs. Prescription via GPhC-regulated online consultation.
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Trimethoprim
MHRA-approved alternative antibiotic for cystitis. Suitable where nitrofurantoin is not appropriate.
Order Trimethoprim →Get Cystitis Diagnosed & Treated Online
Access Doctor’s GPhC-registered pharmacist independent prescribers review your consultation and prescribe the appropriate antibiotic. Discreet next-day delivery.
Treat Cystitis Online →Frequently Asked Questions About Cystitis
What is cystitis?
Cystitis is bladder inflammation, most commonly caused by a bacterial infection (UTI). Symptoms include frequent urination, burning when urinating, cloudy urine, and lower abdominal discomfort. It primarily affects women.
Is cystitis the same as a UTI?
The terms are often used interchangeably. Technically, cystitis means bladder inflammation — which can occasionally have non-bacterial causes. Most cystitis in otherwise healthy women is caused by a bacterial UTI.
Can men get cystitis?
Yes, but it is much less common. UTIs in men are more likely to indicate a serious underlying condition and should always prompt in-person GP assessment. Access Doctor’s online cystitis service is for adult women only.
What causes cystitis?
The most common cause is a bacterial UTI (usually E. coli). Other causes include certain drugs (especially chemotherapy agents), pelvic radiation therapy, irritating hygiene products, and complications from conditions like kidney stones or diabetes.
How is cystitis diagnosed?
Typically through a urine sample test checking for bacteria, blood, or pus. If no bacteria is found but symptoms persist, a cystoscopy may be performed. Imaging is rarely needed but can identify structural causes.
Can stress cause cystitis?
There is no direct evidence that stress causes cystitis. However, chronic stress can weaken the immune system, potentially increasing vulnerability to bacterial infections including UTIs.
References
- NICE. Urinary tract infection (lower) — women. Clinical Knowledge Summaries. Available at: cks.nice.org.uk/topics/urinary-tract-infection-lower-women
- NHS. Cystitis. Available at: nhs.uk/conditions/cystitis
- UKHSA. English surveillance programme for antimicrobial utilisation and resistance (ESPAUR). Available at: gov.uk
- Electronic Medicines Compendium. Nitrofurantoin 100mg m/r capsules — SmPC. Available at: medicines.org.uk/emc
- Electronic Medicines Compendium. Trimethoprim 200mg tablets — SmPC. Available at: medicines.org.uk/emc
Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment. Nitrofurantoin and trimethoprim are prescription-only medicines — a medical consultation is required before they can be dispensed. If you have a fever, loin/back pain, or are pregnant, seek urgent in-person medical care. In an emergency, call 999.