As Brits enjoy the sunny weather this summer, many are likely to don their gym gear in a bid to keep cool. The sweat-tackling and breathable properties of activewear make them an ideal choice.
However, a health expert has issued a warning against wearing tight workout clothes, as it could trigger a hidden health issue.
Thrush, a common fungal infection that affects around 75 percent of UK women at least once in their lives, can occur at any time but is often more prevalent during the warmer months, reports the Mirror. The NHS describes it as ‘uncomfortable’ and warns it can keep coming back.
To shed light on why thrush is more common in summer and how to reduce the risk, Amie Anand, pharmacist at Well Pharmacy Online Doctor, has provided insights and practical advice.
“Thrush thrives in warm, damp conditions and can develop when the natural balance of bacteria and yeast in the vagina is disrupted,” explained Amie.
“During summer – particularly when travelling or holidaying abroad – this balance is more easily upset due to increased sweating, frequent swimming, and the general rise in temperature.”
Amie recommends wearing breathable clothing, opting for cotton underwear, and avoiding prolonged periods in wet swimwear to help prevent thrush during the warmer months.
Thrush is triggered by an overgrowth of Candida, a type of yeast that naturally resides in the body. During summer, a mix of heat, moisture, and lifestyle alterations can provide the ideal conditions for it to proliferate.
Common signs of thrush
Early detection is key to treating thrush effectively. Typical symptoms include:
- Itching, burning, or irritation in the affected area
- A thick white discharge (often likened to cottage cheese)
- Redness and swelling
- Pain or discomfort during urination or sex (in vaginal thrush)
If left untreated, symptoms can worsen and cause ongoing discomfort.
6 typical summer triggers for thrush
Increased heat and perspiration
“High temperatures result in more perspiration, particularly in areas like the vagina, underarms, and beneath the breasts,” said Amie. “This excess moisture can create the perfect warm, damp environment for yeast to multiply. Choosing loose, breathable fabrics like cotton can help mitigate this risk.”
Extended periods in wet swimwear or sweaty clothes
She said: “Long durations in damp swimwear or sweaty workout gear can trap moisture against the skin, disrupting the natural balance of bacteria and yeast. Candida flourishes in warm, moist conditions, making it vital to change into dry clothing as soon as possible after swimming or exercise.”
Tight clothing and synthetic fabrics
“Wearing tight clothing, including non-breathable underwear, tights, or leggings, can trap heat and moisture against the skin, creating the ideal environment for yeast to thrive,” she said.
“Synthetic fabrics like polyester and nylon are particularly problematic, as they lack the breathability of natural fibres like cotton or bamboo. Opting for looser, more breathable fabrics can reduce this risk significantly.”
Hormonal fluctuations
“Heat isn’t the only factor – hormonal changes can also play a significant role. For some, hormonal shifts during the menstrual cycle or from birth control pills can increase the likelihood of thrush by altering the vaginal pH, making it more likely to develop thrush,” she said.
Diet changes and high sugar intake
“Summer often brings BBQs, picnics, and sweet treats like ice creams, cocktails, and sugary drinks. High sugar levels can fuel yeast growth, as Candida feeds on sugar. Limiting sugar intake and incorporating probiotic-rich foods, like yoghurt and kefir, can help maintain a healthier pH balance,” she said.
Travel and disrupted hygiene routines
“Travel or being away from home can disrupt routine hygiene practices, leading to more prolonged exposure to sweat or changes in pH levels from different water sources, personal care products, or unfamiliar bathroom conditions. Pack breathable underwear to stay fresh on the go,” she said.
While thrush is a common and treatable condition, prevention is always better than cure – particularly in the summer months when conditions can make infection more likely. By understanding what causes it and taking some simple precautions, you can enjoy the season with comfort and confidence.
If you suspect you have thrush or are experiencing recurring symptoms, it’s important to consult your pharmacist or GP for appropriate treatment.