Hmmm...how long have you had your rats, and did you get them from the same place at the same time? If not, how did you go about introducing them and how long have they been in the same cage?pooky said:i put my rats in the same cage and when i picked up the naked and on her tummy was a gash or something. should i be alarme. she also has some scratches on her. should i put them in the same cage in a week?