No – if you do it right.
You can move the funds by means of a trustee-to-trustee transfer to another IRA, or roll over the amount to your 401(k). You would need to check with your current employer or the 401(k) plan's administrator to determine if it will allow the rollover first, of course. This way, you will keep the amount in your retirement nest egg and defer paying incomes tax on the amount.
You can close your Roth account without negative consequences if your total account balance is less than the accumulated amounts you deposited as regular contributions. Furthermore, if you distribute the total balance, you may be able to deduct the losses on your tax return.
For more information from the IRS on this matter, see "Recognizing Losses on Investments" in IRS Publication 590.
To learn more, read Common IRA Rollover Mistakes.
This question was answered by Denise Appleby