Explaining Biology on Instagram: "Hair splinters are tiny, sharp fragments of hair that pierce the skin—usually on hands, feet, neck, or between fingers. They happen most often to barbers, stylists, pet groomers, or anyone handling freshly cut hair. Because cut hair is stiff and needle-sharp, it can slip into the skin, causing itching, redness, pain, and sometimes infection if not removed. Quick tips: rinse the area, use clean tweezers, apply antiseptic, and cover if irritated. “Ever felt a stin