If you’ve ever made an appointment with a dermatologist, you might have noticed one of their pre-appointment instructions was to remove your nail polish. But why? According to women’s health expert and advocate Marla Ahlgrimm, it is because your fingernails say a lot about your overall health. Read on as Ahlgrimm answers reader questions about the fingernail/health connection.
Q: I’ve recently noticed a dark streak underneath my fingernail. Should I get that checked out?
Marla Ahlgrimm: Yes, dark streaks that run from the cuticle to the tip may indicate a potentially deadly skin cancer known as melanoma. Some fungal infections can also turn the nail bed dark green or gray. A blue tint underneath the nails could be a sign of a circulatory problem involving the lungs or heart.









Renowned women’s health and hormone expert 
An early 2017 study published by the US National Library of Medicine reveals that PMDD, an extreme form of PMS, may be linked to a response by certain genes to female sex hormones, reports women’s health expert 
Nationally acclaimed women’s health expert 
Acclaimed women’s health and hormone expert 
Adrenal disorders can cause a number of disparaging symptoms, says women’s health expert 





Marla Ahlgrimm has co-authored two ground-breaking books,