In bad cases, the nail may stop growing. While not always bad, lasting or repeating lines need a doctor visit.
Watching for these can show how your body handles stress or sickness.
Clubbing: Heart Health Clue
When nails curve down and fingertips swell, it’s clubbing. It may mean heart disease. Dr. Shah says it changes slowly, so it’s hard to see.
Other signs are swollen ankles, tiredness, and chest pain. Some people have it naturally. But if you see big nail shape changes with other health issues, see a doctor.
Early nail checks can help with heart problems.