Dark knuckles can indicate a metabolic condition, medication side effect, or other condition. Dark patches of skin can occur due to hyperpigmentation, which happens when the skin produces more melanin ...

Those with darker skin pigmentation are more likely to develop dark knuckles, but it can happen to anyone. Dark knuckles may be a sign of a drug reaction or an underlying condition, like polycystic ...

Mike Thomas is the TV Resource Editor for Collider and is responsible for crafting TV guides and materials for fans who want to learn more about their favorite shows. He's also helped cover several ...

Jeffrey is a freelance features writer at Collider. He is an MPA-accredited entertainment journalist and a Tomatometer-approved critic based in the LA area. He graduated from the University of Texas ...