Fluid or fat?
Bags under the eyes can have many causes and yes, heredity is one of them. Other factors that influence the under eye area are: aging changes, sun and smoking exposure, Fluid retention allergies, less sleep and skin wrinkles. There are many treatments including Skincare, facial fillers, Blepharoplasty eyelid surgery and laser resurfacing or chemical peels. I would recommend a consultation with an eyelid specialist such as an oculoplastics surgeon.