Jaime Pressly has opened up about having an ''almost full mastectomy.''

The 'Jennifer Falls' actress revealed she noticed lumps forming in her breasts four years after she was first diagnosed with Mastitis - an inflammation in the mammary glad that often results from a bacterial infection related to breastfeeding.

She developed a severe form of the benign disorder after welcoming her seven-year-old son, Dezi, with former fiancé Eric Cubiche into the world in 2007, and initially assumed she was suffering from ''regular breastfeeding pain.''

The 37-year-old star told 'The Talk': ''I had something that happened to me years ago -- when I had my son I got mastitis, but I didn't know because I thought it was just regular breastfeeding pain.''

After having scar tissue removed from one breast, the blonde beauty's doctors informed her that the disorder had spread and she was forced to remove tissue from her other breast.

The former 'My Name Is Earl' star said: ''[I had] almost [a] full mastectomy. I still have some breast tissue left, just from the mastitis because it mutated into something else because it sat dormant for a while. But it was the craziest thing. Thank God it wasn't [cancer].''