What causes fingernails to curve?

Curved fingernails are often a symptom of an underlying medical condition, such as anemia or an iron deficiency, according to WebMD. Curved fingernails may also indicate a symptom of diseases, such as chronic obstructive pulmonary disease, emphysema or interstitial lung disease. read more

Then, the nail starts to gently curve under. As the condition progresses, the nail becomes thicker, especially at the end of the finger. Additionally, the nail may appear to have stripes or grooves. read more

» Review Causes of Abnormally curved ends of fingernails: Causes | Symptom Checker » Abnormally curved ends of fingernails: Symptom Checker. Listed below are some combinations of symptoms associated with Abnormally curved ends of fingernails, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition. read more