Answer:
horrible and gross.
They were all nearly naked, they suffered from swarms of insects, filth, and disease, much of which was generated by the contaminated water supply of the creek, it was also overcrowded to four times its capacity, there was also inadequate food and unsanitary conditions.
Andersonville had the highest mortality rate of any Civil War prison. Nearly 13,000 of the 45,000 men who entered the stockade died there, chiefly of malnourishment
-------
Hope this helps :)