✔️ Diabetes mellitus  
✔️ Thyroid gland diseases  
✔️ Polycystic ovary syndrome (PCOS)  
✔️ Hypothyroidism  
✔️ Nodular goiter  
✔️ Endemic goiter  
✔️ Autoimmune thyroiditis (Hashimoto’s disease)  
✔️ Parathyroid gland disorders  
✔️ Hypoparathyroidism  
✔️ Pituitary gland disorders  
✔️ Hyperprolactinemia  
✔️ Adrenal gland diseases  
✔️ Reproductive endocrinology  
✔️ Endocrine-related infertility  
✔️ Hirsutism (excessive hair growth)  
✔️ Disorders of sexual development  
✔️ Precocious puberty  
✔️ Delayed puberty  
✔️ Gestational diabetes  
✔️ Diabetes insipidus  
✔️ Obesity  
✔️ Insulin resistance and metabolic syndrome