Hair Glossary

This type of alopecia (hair loss and baldness) is considered to be hereditary and is characterized by a general decrease in hair density. Although it's relatively common in women, it impacts both men and women. 
It's classified as unpatterned versus patterned, which is another type of alopecia

It does not follow any specific pattern and can occur all over the head, although it is often more evident in the frontal and upper areas of the scalp.  Sometimes, it will also present in different areas of the body.

This condition is different from the type of hair loss categorized as Male or Female Baldness (MPB or FPB)

It is often a gradual loss that does not initially appear evident to the person experiencing the loss.  Usually, it is first noticed by friends and family.

The causes aren't fully understood, but the condition is often hereditary. 
Some hair loss experts believe may or may not caused by:
Chronic skin irritations on the scalp
Hormonal imbalances
Nutritional deficiencies
Medications specifically related to anti-depressants and anti-hypertensive

DUPA is often treated with Finasteride, an FDA-approved medication.  Some may find positive results with laser or PRP treatments.