The skin is very dark and the avocado feels mushy or collapses when gently pressed
There are large sunken spots, cracks, or leaking liquid on the outside
The stem area is moldy, black, or gives off a bad smell
The flesh is brown, gray, or black throughout after cutting
The flesh has stringy, slimy, or watery texture
There are mold spots anywhere on the inside or outside
It smells sour, rotten, fermented, or otherwise off
The taste is bitter, sour, or unpleasant
The avocado has been cut open and left too long, and the exposed flesh has turned brown with a bad odor
The avocado is shriveled, dried out, or hollow inside