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Thrush: Causes & Symptoms

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thrush symptom on tongue

What Causes Thrush?

Thrush is caused by a yeast fungus named Candida Albicans. It is a common fungal infection caused by the Candida fungus.

This article will explore the causes of thrush, its symptoms, testing methods, and effective treatments. Whether seeking information for yourself or someone else, understanding thrush is essential for prompt diagnosis and appropriate management.

suppositories to treat thrush

How Do You Get Thrush?

Thrush occurs when there is an overgrowth of Candida fungus in the body. While Candida naturally resides in our bodies, certain factors can disrupt the balance, leading to an infection. Common causes include:
  • Weakened Immune System: Conditions such as HIV/AIDS, diabetes, or undergoing chemotherapy can weaken the immune system, making individuals more susceptible to thrush.
  • Antibiotics: These medications can kill beneficial bacteria in the body, allowing Candida to multiply and cause an infection.
  • Hormonal Changes: Hormonal fluctuations during pregnancy or the use of hormonal contraceptives can increase the risk of thrush.
  • Poor Oral Hygiene: Not maintaining proper oral hygiene can lead to oral thrush, characterised by white patches on the tongue, inner cheeks, or throat.
  • Weakened Skin Integrity: Wounds, cuts, or skin irritation can create an entry point for Candida, causing localised infections such as genital thrush.
It’s important to note that, whilst thrush is not classed as a sexually transmitted infection, it can be triggered by sex.

Symptoms of Thrush

Thrush can manifest in various ways depending on the affected area. Common symptoms include:

Oral Thrush

White or cream-coloured patches on the tongue, inner cheeks, or throat. These patches may be painful or cause difficulty swallowing.

Genital Thrush

Itching, redness, and swelling in the genital area, along with a thick, white discharge in women.

Diaper Rash

Infants may develop a bright red rash in the diaper area that does not improve with typical diaper rash treatments.

Nail Bed Infection

Candida can invade the nails, causing changes in colour, texture, and thickness.

Is Thrush Contagious?

No, thrush is not contagious and is usually treated successfully with antifungal medication.

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A gynecologist in blue gloves is taking an analysis for research. Gynecologist taking a smear.

How Is Thrush Diagnosed?

If you are experiencing vaginal thrush or similar symptoms, speaking to a GP, nurse, or pharmacist about them is enough for them to diagnose thrush successfully. They can also ask about your medical history and whether or not you have had thrush before. If over-the-counter thrush treatment has not helped, they may also examine you or perform a swab test.

Is Vaginal Thrush Common?

Yes, vaginal thrush is common. Approximately three-quarters of women will experience vaginal thrush at some point. 1 in 20 women experience recurring thrush infections, and you can get vaginal thrush at any age. However, it’s most common in women in their 20s and 30s.

yeast cells

Thrush & A Weakened Immune System

Thrush hardly ever affects healthy adults. It is common in people with weakened immune systems, diabetes, and other chronic conditions. Certain medications can also make thrush more likely to appear.

Thrush Symptoms in Women

In addition to general thrush symptoms, women may experience the following:
  • Vaginal Discharge: A thick, odourless discharge resembling cottage cheese.
  • Vaginal Itching: Persistent itching and irritation in the vaginal area.
  • Painful Intercourse Sexual intercourse may be uncomfortable or painful.

Thrush Symptoms in Men

Though less common, men can also develop thrush. Symptoms may include:

  • Balanitis: Redness, swelling, and soreness of the head of the penis.
  • Itching and Irritation Discomfort and itching in the genital area.
  • Discharge: A thick, white discharge under the foreskin.
Home-STI-Self-Swab

Testing for Thrush

To confirm a suspected thrush infection, healthcare providers may conduct the following tests:
  • Physical Examination: The affected area will be examined visually to assess the appearance of characteristic symptoms.
  • Swab Test: A sample of the affected area, such as the mouth or genital region, may be collected and sent for laboratory analysis to identify Candida.
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itchy crotch thrush symptoms

Treatment for Thrush

Treating thrush typically involves antifungal medications to eliminate the Candida fungus. The specific treatment approach depends on the severity and location of the infection:
  • Topical Antifungals: Antifungal creams, ointments, or oral tablets are commonly used for mild cases of oral or genital thrush.
  • Oral Antifungals: For more severe or recurrent infections, oral medications are prescribed to combat the fungal overgrowth.
  • Underlying Conditions: Managing underlying factors, such as controlling blood sugar levels in diabetes or adjusting immunosuppressive therapy, is crucial to preventing recurrent thrush infections.
Patients who are concerned about prostate cancer seek the advice of a medical advisor to review their symptoms with a prostate cancer specialist and are competent in prostate cancer treatment.

Avoiding Thrush

To reduce the risk of thrush, consider the following preventive measures:
  • Practice Good Oral Hygiene: Brush your teeth twice daily, floss daily, and use an antifungal mouthwash if necessary.
  • Maintain Dryness: Keep areas prone to moisture, such as the genital region, clean and dry to prevent Candida overgrowth.
  • Limit Antibiotic Use: Only take antibiotics when necessary; if prescribed, complete the entire course as directed by your healthcare provider.
  • Avoid Irritants: Use mild soaps and avoid irritating substances that can disrupt the natural balance of healthy bacteria and yeast.
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Regular Thrush

If you experience frequent or recurring thrush infections, it is essential to consult a healthcare professional. They can help identify underlying causes, such as an undiagnosed medical condition or immunodeficiency, and develop a tailored treatment plan to manage your condition effectively.

Vaginal Smear. Close-up of doctor hand holds gynecological examination instruments. Gynecologist working in the obstetrics and gynecology clinic.

Understanding Thrush

Understanding the causes, symptoms, testing methods, and thrush treatment options empowers individuals to recognise and address the condition promptly. By implementing preventive measures and seeking appropriate medical care, you can manage thrush effectively and reduce its impact on your overall well-being.

Consulting a sexual health clinic or GP is crucial for an accurate diagnosis and personalised treatment plan.

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