Tumours in Rats - what to do when your pet rat has lumps and bumps by: Catherine Smith If you find a bump on your female rat, don't fret. It is usually a benign tumour. You should of course, still get it checked out by the vet. Female rats are very prone to lumps and bumps, especially around the mammary glands. Rats have nipples in odd places. There are a pair right behind their front legs, so this is a common place for a lump. Benign tumours can grow very fast. They have been known to be the size of the rat itself. It is possible to have the lump surgically removed. If you catch the lump early, this is probably a good idea, as when it gets bigger it will make it difficult for your rat to groom herself and move around properly. My beautiful rat Ginger has developed a benign tumour. Unfortunately the vet felt she was too old to operate on. There was too much risk involved. He also felt the lump would probably grow back elsewhere. The lump has grown over the last 4 months, but Ginger still seems happy. Sometimes she goes onto a course of antibiotics to help her feel better and she is more tired these days, but she still loves her cuddles and her best friend Mr T. I have been giving her the following mixture to help her body fight: Mix together the following ingredients: 3 capsules of CLA (Tonalin) (1000mg) 1 capsule Co-enzyme Q10 (10mg) 10 drops of echinacea/goldenseal liquid herbal extract 1ml of sublingual B vitamin complex liquid 1 capsule Super antioxidant formula (has vit C, E, beta-carotene and selenium - do not give this if Enervite or any other vitamin supplements are being given) 3 capsule Pau d'arco (500mg) 1 capsule Flaxseed oil (1000mg) 1" square of miso paste (pure organic, not flavored) Divide into 14 parts and keep them in the fridge. If your ratty has a fast growing tumour give this twice a day, otherwise give it once. You can mix it with yogurt or something else yummy that your rat loves, so as to disguise the taste. If your male rat gets a lump, there is more chance it could be cancerous. Either way please take your rat to the vets straight away and be prepared for some nursing. http://www.RatsRatsRats.com