reason for black marks on face

Sudden changes in skin pigmentation, like the black marks you mentioned, can indeed be concerning and sometimes baffling, but they often have common explanations. These spots could possibly be a result of hyperpigmentation. This condition can be triggered by various factors, including sun exposure, which you suspected, hormonal changes, and even trauma to the skin. It’s true that not wearing sunscreen can lead to sun damage, which can result in dark spots over time, especially if you’ve been outdoors frequently. It’s essential to incorporate sunscreen into your daily routine, even on cloudy days, to protect your skin from UV rays that exacerbate hyperpigmentation. Hormonal changes can also contribute, such as from birth control or hormonal fluctuations, often leading to melasma, which is common on the face. Stress and anxiety themselves are not direct causes of pigmentation changes, but they can indirectly affect your skin by disrupting your hormone balance or making you neglect skin care, contributing to the issue. For the time being, continue using a broad-spectrum sunscreen regularly. Look for over-the-counter creams containing ingredients like hydroquinone, niacinamide, or vitamin C, which can help lighten dark spots, though results may take time to show. Still, these marks might be harmless and manageable, but it’s good that you’ve scheduled a visit with a dermatologist. They can provide a thorough evaluation and may suggest treatments such as topical medications, chemical peels, or laser therapy, depending on the cause and severity of the marks. Addressing any underlying conditions early will also help prevent further issues. In the meantime, try not to worry excessively and avoid picking or harshly scrubbing those areas, as this could potentially worsen the pigmentation.