2. Yellow Skin (Jaundice) or Dark Velvety Patches
Yellowish skin or eyes often points to liver or gallbladder problems, like hepatitis or blocked bile ducts. On the other hand, thick, dark patches in body folds (neck, armpits) may suggest insulin resistance or diabetes. Both conditions require medical evaluation to prevent complications.

3. Unexplained Bruising, Rashes, or Itching
Easy bruising without injury could indicate blood disorders or vitamin deficiencies. Persistent itching—especially without a rash—might signal liver disease, kidney problems, or even lymphoma. A butterfly-shaped rash across the cheeks is a classic lupus symptom. Don’t dismiss these changes; get tested.

4. Sudden Nail Streaks or Skin Ulcers
Dark streaks under nails (without injury) may warn of melanoma or heart infections. Meanwhile, slow-healing ulcers, particularly on legs or feet, can indicate poor circulation, diabetes, or skin cancer. Your skin speaks volumes—listen to it and seek medical advice promptly!