- renal glycosuria
- Type B insulin resistance syndrome
- Toxic thyroid adenoma
- Toxic multinodular goiter
- Thyroiditis
- Thyroid cancer
- Thyroid adenoma
- Stress-induced hyperglycemia
- Sitosterolemia
- Silver-Russell syndrome
- Reactive hypoglycemia
- Rabson-Mendenhall syndrome
- Pseudo-pseudohypoparathyroidism
- Primary hypothyroidism
- Pregnancy with hypothyroidism
- Prader-Willi syndrome