Inclusion Criteria:

• * Children 5 to 17 years of age with a diagnosis of moderate to severe atopic dermatitis as made by a dermatologist
• * Duration of atopic dermatitis symptoms for a minimum of 6 months
• * Ability to cooperate with DXA and HR-pQCT procedure

Exclusion Criteria:

• * Those without a confirmed diagnosis of moderate to severe atopic dermatitis
• * Presence of concurrent disease that may also affect bone health, including rickets or other vitamin D deficiency, thyroid disease, renal disease, Paget's disease, osteogenesis imperfecta, inflammatory bowel disease, and other chronic inflammatory diseases
• * Current use of medications that may affect bone health, including bisphosphonate, Forteo, Tymlos, denosumab, thiazide, heparin, medroxyprogesterone acetate, cyclosporine, and oral tacrolimus. However, medications that are used for atopic dermatitis treatment are allowed
• * Pregnant or breast feeding females
• * Inability to cooperate with the blood draw