Hair care enthusiasts are being urged to reconsider a common post-shower habit that could silently sabotage their hair health. Dermatologists have sounded the alarm over the risks of leaving hair damp for extended periods, with some experts linking the practice to potential scalp infections and, in severe cases, hair loss.
The warning comes amid growing concern in online beauty communities about so-called “mouldy hair.” While dermatologists clarify that actual mould cannot grow on human hair, the confusion stems from fungal conditions that mimic mould-like symptoms on the scalp.
Dr. Aamna Adel, a dermatologist with a strong following on TikTok, recently addressed the issue in a viral video. “We all have natural yeast and fungus that live on our skin and scalp called Malassezia,” she explained. “But if you’re lazy about drying your hair after washing, you’re creating the perfect storm for this yeast to overgrow.”
The excess moisture left on the scalp provides an ideal breeding ground for fungi, which can disrupt the scalp’s natural microbiome. When this delicate balance is disturbed, it may lead to a condition known as seborrheic dermatitis—a chronic scalp disorder that causes itching, flaking, and redness. Often misinterpreted as “hair mould,” this condition can range from mild dandruff to more severe cases requiring medicated treatment.
More alarmingly, Dr. Adel pointed to the risk of developing tinea capitis, a fungal infection that, in its worst form, can cause noticeable hair loss. “Trust me, you don’t want that on your scalp,” she cautioned.
Medical experts agree that while “mouldy hair” is a misnomer, the symptoms can resemble mould growth due to the appearance of inflamed, scaly, or discoloured patches on the scalp. These symptoms are especially common in colder months, when hair tends to stay damp longer after washing.
The takeaway? One of the most crucial but often overlooked hair care steps is properly drying your hair after every wash. This simple action can help maintain the scalp’s natural microbiome and prevent the overgrowth of yeast and fungi.
Hair care tips from professionals include using a microfiber towel to gently blot excess moisture, avoiding tight hairstyles on damp hair, and allowing the scalp to dry fully before bed.
For those already experiencing symptoms like persistent itching, flaking, or inflammation, dermatologists recommend consulting a specialist. Treatment options range from anti-fungal shampoos to prescription creams and, in more advanced cases, oral medications.
With summer and humid weather adding to the risk, experts emphasize that drying your hair isn’t just about styling—it’s a critical step in protecting long-term scalp and hair health.
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