I've been noticing these black dots on my chest and stomach for the past couple of months. They're not painful or itchy, but I'm curious and a bit worried about what they might be. I usually sleep without a shirt, so I'm wondering if that might be related. Could you help me understand what these might be and why they've appeared?

Possible Causes
a. The black dots could be benign conditions like blackheads or hyperpigmentation.
b. Consider environmental factors, such as exposure to dust or sweat, especially if sleeping without a shirt.

Recommendations
a. Maintain good hygiene; wash the area with a gentle cleanser.
b. Monitor for changes in size, color, or texture.

When to Seek Medical Advice
a. If the dots change in appearance or become symptomatic.
b. Consult a dermatologist for a precise diagnosis if concerned.