Did you buy health insurance from the Marketplace exchange? Or have to pay back the subsidy? If you went to an exchange for Health Insurance, and had to pay back some of the subsidy, part of the adjustment will flow to Schedule A.
If you get Social Security benefits the medicare deduction on your SSA-1099 will flow to Schedule A.
To check Medical expenses just start typing Medical in the search box at the top of your return and pick "medical expenses, sch a" from the drop down list. Then click on Jump To at the top of the list.
OR
Enter Medical under
Federal Taxes Tab or Personal (for H&B/Self Employed version)
Deductions and Credits
Choose Jump to Full List -or I'll choose what I work on
Then scroll way down to Medical
Then Medical Expenses - click Start or Update
