Yes, rain can increase dandruff in some individuals.
Dandruff, a common scalp condition causing flaky skin, is often exacerbated during the rainy season. Several factors contribute to this:
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Humidity: Increased humidity levels, typical during rainy periods, create a favorable environment for the Malassezia globosa fungus, a primary contributor to dandruff. This fungus thrives in moist conditions and feeds on scalp oils.
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Scalp Oil Production: The humid climate can stimulate excessive oil production on the scalp. This excess oil provides more food for Malassezia, leading to its overgrowth and subsequent dandruff.
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Infrequent Washing: People may be less inclined to wash their hair frequently during rainy weather due to concerns about it getting wet again quickly. This infrequent washing allows oil and dead skin cells to accumulate, further contributing to dandruff.
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Compromised Scalp Health: Fluctuations in temperature and humidity can disrupt the scalp's natural balance, potentially weakening its defenses and making it more susceptible to dandruff.
While rain itself doesn't directly cause dandruff (as it's often linked to a fungal imbalance), the conditions associated with rainy weather can certainly worsen existing dandruff or trigger new flare-ups.