What is secondary OP?

Endocrine (thyrotoxicosis, hyperpara, Cushing's, T1DM, acromegaly, hypogonadism, hyperPRL, bilateral oophorectomy) Drugs (glucocorticoids, aromatase inhibitors, GnRH agonists, antidepressants and antiepileptics and PPI) Hematologic disorder (multiple myeloma, mastocytic hemophilia, thalassemia) Nutritional/GI (IBD, malabsorption diseases, malnutriton) Neuro (parkinsons) Others (RA, AS, COPD, SLE, CKD, immoblisiation, sarcoidosis, amyloidosis, organ transplatn)