A vaginal yeast infection, or candidiasis, results from an overgrowth of the fungus Candida albicans. This fungal imbalance typically causes uncomfortable symptoms like itching, burning, and irritation in the vulvovaginal area. When dealing with an active infection, a common concern is whether swimming will worsen the condition or pose a risk to others.
The Effect of Water Exposure on Symptoms and Healing
Submerging an irritated area in water can affect both comfort and healing. Chlorinated pool water contains chemicals designed to sanitize, but these agents can disrupt the delicate pH balance of the vagina. This chemical exposure can increase irritation, causing a stinging or burning sensation in tissue already inflamed by the fungal overgrowth. Prolonged exposure to chlorine may also dry out sensitive skin, exacerbating symptoms like itching and discomfort.
In natural bodies of water, such as lakes or oceans, concerns shift to potential contaminants. While ocean saltwater is less harsh than chlorine, it can still have a drying effect on mucous membranes. Lake water, which is not regulated, carries a risk of introducing other microorganisms that could complicate the existing infection. Immersion in any water source can also reduce the effectiveness of topical antifungal treatments by washing them away, potentially delaying healing.
The primary factor in potentially worsening a yeast infection is subsequent moisture retention, not the water itself. Candida thrives in a warm, moist environment, and a wet swimsuit acts as an incubator against the skin. Staying in damp fabric after swimming creates conditions for the fungus to multiply, which can prolong the infection or intensify symptoms.
Risk of Spreading the Infection in Public Water
Individuals often worry about transmitting a yeast infection to others in public pools or shared water spaces. A vaginal yeast infection is not considered an infectious disease that spreads easily through water contact. The fungus requires specific internal conditions, mainly a disruption of the vaginal flora and pH balance, to colonize and cause symptoms.
The concentration of Candida introduced into a large body of water is rapidly diluted. Furthermore, properly maintained swimming pools use chlorine, which is an effective disinfectant against most pathogens, including yeast. The risk of catching a yeast infection from a swimming pool is extremely low, meaning swimming does not pose a public health concern for others.
Mitigation Strategies and Post-Swim Care
If a person chooses to swim with an active yeast infection, immediate hygiene is required to prevent symptoms from worsening. The most important step is to change out of the wet swimsuit immediately upon exiting the water. Keeping the moist fabric away removes the primary environment that encourages fungal growth. Rinsing off with fresh water after swimming is also recommended to wash away residual chlorine or salt. The affected area should then be thoroughly dried by gently patting the skin with a clean towel, rather than rubbing, which can increase irritation.
Wearing loose-fitting, breathable clothing, particularly cotton underwear, supports a dry environment. Cotton is a natural fiber that allows for better airflow and absorbs moisture more effectively than synthetic materials. Continuing any prescribed or over-the-counter antifungal treatment regimen is important. It may be wise to delay the application of topical treatments until after the swim to ensure maximum absorption.

