Let's start from the beginning! A urinary tract infection (UTI) occurs when there is an abnormal presence of pathogenic bacteria in the urinary system. It can affect different areas: the bladder, kidneys, urethra, or ureters.

Cystitis is the most widespread urinary tract infection. It is located in the bladder. It is the most common form in women. All cystitis is a urinary tract infection, but not all urinary tract infections are cystitis: when the infection reaches the kidneys, it is called pyelonephritis, a more serious situation that requires urgent care.

As for urethritis, it affects the urethra, the tube that allows urine to flow from the bladder to the outside. It can be infectious or irritative in origin.

It often manifests as:

• burning or stinging when urinating,
• localized discomfort at the exit of urine,
• sometimes a frequent urge to urinate.

In women, urethritis can be easily confused with cystitis, as the symptoms are similar. However, the affected area is not the same, and the management may differ.

In about 90% of cases, cystitis is caused by a bacterium called Escherichia coli, naturally present in the intestine. This bacterium can travel up the urethra to the bladder, where it multiplies and causes inflammation responsible for the characteristic symptoms.

But other causes can lead to cystitis, such as stress, poor hygiene, menstruation, a poor diet, etc.

This anatomical proximity explains why UTIs are more common in women, and why gentle and adapted hygiene plays an important role in prevention.

Certain signs should alert you and prompt you to seek medical advice. Here are the most characteristic symptoms of a urinary tract infection, which we detail in our dedicated articles:

• Burning when urinating: this symptom is often the first warning sign
• Frequent urge to urinate: urination is frequent and sometimes little urine is expelled
• Foul-smelling urine: an unusual and strong odor that can indicate an infection
• Lower back pain: lower back pain with a urinary tract infection is an alarm signal that may indicate the infection has reached the kidneys

✋ Warning: if you experience fever, chills, or intense lower back pain, seek urgent medical attention. These symptoms may indicate pyelonephritis requiring immediate treatment.

✋ First and foremost, it is important to remember that if you suffer from one or more of these symptoms, you must consult a doctor. Natural solutions do not replace medical treatment. Especially, if you have Gardnerella, only antibiotic treatment can cure you. However, they can provide real comfort and complement your care. Here are natural approaches recognized to support healing.

There are certain plants used for urinary comfort with diuretic properties. Diuretic herbal teas based on cherry stems, hawkweed, or bearberry can relieve the symptoms of cystitis. These plants promote natural elimination and provide complementary support.

It is recommended to drink at least 1.5 to 2 liters of water per day to dilute urine and promote the elimination of bacteria. Prefer plain water and herbal teas, avoiding coffee and alcohol which can further irritate the bladder.

Cranberry has been the subject of numerous studies and is an effective food for fighting urinary tract infections. According to a 2023 Cochrane review, cranberry products reduce the risk of UTIs by 30% (Cochrane), particularly in preventing recurrence in women.

However, dosage is key to success. To be effective, daily intake must reach 36 mg of PACs (Type A proanthocyanidins), the active compound that prevents bacteria from attaching.

This is where the "juice" format falls short:

• Chronic underdosing: Most commercial juices are diluted. To reach the necessary 36 mg of PACs, one would need to drink approximately 500 ml of pure organic juice (very acidic and bitter) per day, which is difficult to sustain long-term.

• The sugar trap: Classic "nectars" or "cranberry drinks" are saturated with added sugars to mask bitterness. However, sugar is E. coli's preferred fuel for multiplication.

• Gastric acidity: Drinking such quantities of juice can irritate the stomach and damage tooth enamel.

Our opinion: Cranberry juice should remain a pleasure drink or a hydration supplement. For real preventive efficacy, standardized encapsulated extracts are the only solution guaranteeing the therapeutic dosage of 36 mg of PACs, without sugar and without acidity for the body.

Probiotics work by rebalancing the intimate flora, thereby strengthening the body's natural defenses against infections. Strains such as Lactobacillus rhamnosus and Lactobacillus reuteri have shown promising results. They are particularly useful after antibiotic treatment to restore the balance of your flora.

A landmark clinical study published in the journal Archives of Internal Medicine demonstrated that regular supplementation with Lactobacilli can reduce the recurrence rate of urinary tract infections by 50% over one year. These "good" bacteria don't just occupy the territory: they produce lactic acid and hydrogen peroxide, creating an environment hostile to the development of the bacterium E. coli.

They are particularly essential after antibiotic treatment. While antibiotics eliminate the infection but also "strip away" your defenses, probiotics restore the balance of your flora to close the door to the next crisis.

Also read: Comparison of the best supplements and probiotics for urinary tract infections >

A hot water bottle is a simple and effective way to soothe discomfort from an infection. Place the hot water bottle on your lower abdomen, at the level of your bladder, for about 30 minutes. The warmth promotes muscle relaxation and can significantly reduce painful sensations, without any medication.

Unfortunately, some women are prone to recurrence. If cystitis returns regularly, it's time for you to adopt a holistic prevention approach. Here's the routine to adopt to space out recurrences over the long term.

Constipation is a risk factor for recurrent cystitis, as stagnant stools promote bacterial proliferation. Therefore, favor a high-fiber diet with fruits and vegetables. Avoid acidifying foods like citrus fruits, tomatoes, coffee, and alcohol, which can irritate the bladder. Also limit sugary and processed foods that disrupt the balance of your flora and promote bacterial multiplication.

Intimate hygiene plays a major role in prevention. It is recommended to perform intimate cleansing once a day, with a gentle, soap-free product with a pH adapted to the vulvovaginal area. Also, know that too much hygiene can unbalance the protective flora. Finally, always remember to wipe from front to back to avoid bringing harmful germs towards the vagina, and wear cotton underwear and avoid tight pants.

Certain periods of life or specific situations increase the risk of urinary tract infections. It is important to know them in order to better manage them.

Urinary tract infection during pregnancy: increased vigilance

Urinary tract infections are common during pregnancy. This is due to an increase in progesterone levels, which slows down urine production and elimination, creating a favorable environment for bacteria. Asymptomatic bacteriuria can lead to pyelonephritis. Therefore, any pregnant patient with a positive urine culture must be treated with antibiotics (MSD Manual).

The risks without treatment? They can induce premature labor or cause premature rupture of membranes. Monthly monitoring with urine dipstick is recommended from the 4th month to detect any infection. Do not take this situation lightly!

If you wish to consume cranberry during pregnancy: medical advice is essential

The safety of cranberry extract supplements has not been formally proven during pregnancy and breastfeeding (VIDAL). Cranberry consumption during pregnancy is generally well tolerated, but beware of sugary industrial juices that can be problematic in cases of gestational diabetes.

✋ Always seek advice from your doctor or midwife before any supplementation.

Also read: Having cystitis during pregnancy: let's talk about it >

Be careful after childbirth, it's a risky period

A bladder infection (cystitis) is common after childbirth because childbirth can weaken the pelvic floor muscles, which can lead to an increased risk of urinary tract infections (Medicover Hospitals). The use of a urinary catheter during labor also increases this risk. Also know that pregnancy hormones continue to affect the bladder for a few weeks after childbirth. Warning signs include burning on urination and fever.

Cystitis and menstruation: often a hormonal link

It's not well known, yet an estrogen deficiency can often be at the root of a hormonal imbalance. This decrease makes the vaginal and urethral mucous membranes more fragile than normal, promotes inflammation, and slows down the process of mucosal restoration. In addition, feminine hygiene products (pads, tampons) can create irritating micro-friction. If you use them, change them regularly and choose soft materials to limit irritation.

Cystitis and sexual intercourse: the right reflex

Did you know that the bacterial count in urine increases by 60 times after sexual intercourse? The protective action? Urinate within 15 minutes afterward to flush out any bacteria that may have entered the urethra. Also remember to hydrate well before and after intercourse. This helps reinforce this mechanical elimination action.

Acute cystitis can sometimes resolve spontaneously in 2 to 5 days, thanks to an effective immune response and good hydration. However, an untreated urinary tract infection can persist for several weeks, or even months in some cases, and the risks of complications increase over time and can become significant. Never let a urinary tract infection linger, and always contact a healthcare professional.

A urinary tract infection requires prompt medical attention in certain situations. Here are the warning signs that necessitate an immediate consultation.

Fever (38°C or higher)

Fever associated with a urinary tract infection can indicate that the infection has reached the kidneys (pyelonephritis). This serious complication requires urgent antibiotic treatment, sometimes with hospitalization.

Intense lower back pain

Pain in the lower back, sides, or flanks, especially if accompanied by fever, indicates possible kidney involvement. Do not wait and consult immediately.

Blood in the urine

The presence of visible blood (pink, red, or dark urine) also requires urgent medical attention.

You are pregnant

Any urinary tract infection during pregnancy, even without alarming symptoms, must be medically managed. The risks to you and your baby justify appropriate antibiotic treatment.

Symptoms persist beyond 48-72 hours

If burning, pain, and frequent urges to urinate do not improve after 2-3 days despite good hydration and natural measures, a consultation is necessary.

You have recurrent urinary tract infections

More than 3 episodes per year require a medical evaluation to identify underlying causes and implement an adapted prevention strategy.
Read: Fight against recurrent cystitis and yeast infections >

You are a man, a child, or an elderly person

Urinary tract infections are rarer but potentially more serious in these populations. Medical consultation is systematically recommended.

• Chills and shivering
• Intense and sudden fatigue
• Nausea or vomiting
• Mental confusion (especially in elderly people)
• Inability to urinate despite the urge

In conclusion, urinary tract infections affect one in two women during their lifetime, with peaks in frequency at the beginning of sexual activity and after menopause. While natural solutions such as abundant hydration, local heat, diuretic plants, or probiotics can relieve discomfort and strengthen your defenses, they never replace medical treatment when it is necessary.

In case of fever, lower back pain, pregnancy, or persistent symptoms beyond 48-72 hours, consult without delay. Prompt management avoids complications and provides effective relief.

Prevention remains your best ally: good daily hydration, adapted intimate hygiene, urinating after sexual intercourse, and a balanced diet significantly limit recurrences. Take care of yourself!

• Source: Urinary Tract Infections in Women (American Family Physician).

• What the study shows: This resource confirms that one in two women will have cystitis in their lifetime. It validates the anatomical explanation (short urethra of 4 cm) and identifies the two peaks in frequency: the onset of sexual activity ("honeymoon cystitis") and menopause (estrogen deficiency).

• Study: Cranberries for preventing urinary tract infections (Cochrane Library, 2023).

• Link: Consult the Cochrane meta-analysis

• What the study shows: This major update of 50 clinical trials confirms a 30% reduction in recurrences thanks to cranberry. It highlights that efficacy depends on the presence of proanthocyanidins (PACs) which mechanically prevent E. coli from adhering to the bladder walls.

• Study: Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14 help prevent recurrent urinary tract infections (Archives of Internal Medicine).

• Link: Consult the study on PubMed

• What the study shows: This landmark study demonstrates that supplementation with Lactobacilli can reduce the recurrence rate by up to 50% over one year by restoring the protective biofilm of the intimate flora, offering a natural alternative to preventive antibiotics.

• Source: Urinary Tract Infections during Pregnancy (MSD Manuals).

• Link: Consult the MSD resource

• What the study shows: Documents the role of progesterone in urinary stasis (slowing of flow) and confirms the risk of pyelonephritis and premature birth in cases of untreated infection in pregnant women.

• Study: Postcoital voiding and other water-related behaviors in the prevention of urinary tract infections.

• What the study shows: Although multifactorial, urination within 15 minutes after sexual intercourse is validated as a physical hygiene measure to expel bacteria introduced into the urethra before they migrate to the bladder.