Detailed answer

Constant use of earphones does not directly cause hyperpigmentation. Hyperpigmentation is primarily caused by factors such as sun exposure, hormonal changes, certain medications, and inflammatory skin conditions. However, wearing tight-fitting or dirty earphones for extended periods of time may contribute to skin irritation and inflammation, which can potentially worsen existing hyperpigmentation or lead to post-inflammatory hyperpigmentation (PIH). It is important to maintain proper hygiene when using earphones and give your skin breaks to minimize the risk of irritation and inflammation.