I want to take a moment here and express my overwhelming thanks to the many listed here that took the time to share photos, case histories, knowledge, and experience in caring for the health of rats.~ Karen Grant, RN

Thanks to all those wonderful veterinarians that took the time from busy schedules to review the Rat Health Guide, and approve or add to the wealth of information here. What would we ever do without your loving care of the many precious rats in need?

Thanks to my colleagues for their help with proofing these many pages, their added wisdom, and support.

Joanne “Bella” Hodges of “Bellaratta’s Nest Rattery” Archived page from 2018-05-20 (via the Wayback Machine), Forida Rat Community, and Rat Guide team member for contribution of artwork, photos and case histories, and her hours of help and support with this project. Sadly we lost “Bella” to illness in 2018.

Kristin Johnson, of “Wererat’s Lair“, and Rat Guide team member/”Administrator”, for her help with coding, design, photo contribution and case history, and hours of proofreading.

Mary Ann Isaksen (Mare), Founder of the National RMCA for sharing her vast knowledge of rats, photos and case history, and her continuing support.

Cyzahhe, for her hours of help with formatting case histories and photos.

Carolyn Sekela RN, Kathy Callahan RN, Sue Fischer RN, my colleagues and friends.

Craig L. Franklin, DVM, Ph.D., ACLAM
University of Missouri Research Animal Diagnostic and Investigative Laboratory (IDEXX RADIL),
(for always being so tolerant of our endless questions).

Carol Himsel-Daly DVM, and author of Rats (A complete Pet Owner’s Manual), (for her supportive words when I took on this project).

Dr. Richard Mackinnis, DVM of South Seminole Animal Hospital in Fern Park Florida (for his many contributions to this project).

Dr. C. Brown, DVM, South Seminole Animal Hospital.

Dr. Michael Hutchinson, DVM, Animal General, Cranberry Township, PA.

Lindsay Pulman, Veterinary Technician

Vanessa Pisano, DVM; VC North Springs Animal Hospital, FL

Dr. Thomas M. Donnelly,DVM, DACLAM

Dr. Mimi Ehrlich, Ajax Animal Hospital, Ajax, Ontario Canada

Dr. Peter Field B.V.S.C. (Hons.) M.A.C.V.Sc.
Member of the Australian College of Veterinary Scientists by examination in Canine Medicine.
Veterinary Physician and Surgeon,
Everton Hills Veterinary Surgery, Everton Hills, Brisbane Qld, Australia

Mrs Louise Dux, Certified Laboratory Animal Technician

Nathalie Baldwin, DVM, (thank you, my friend!).

Adele Wharton, BVSc, MRCVS, CertGP (F&L), Veterinary Surgeon (friend and owned by pet rats)

Anthony Pilny, DVM, DABVP-Avian Certified

Gregory W. Lawson DVM, PhD, DACLAM

Prof. Paul Flecknell, VetMB

Charlene M. Crain, MBA, BSMT (ASCP), for providing histology results on many cases included in this guide, and Dr. Greg Rich, DVM, at West Esplanade Veterinary Hospital.

Dr Larissa Ladyko B.V.Sc; with Al and Robyn Arthur

Paige Anderson with Dr. Bogan, DVM Banfield Veterinary Hospital in Waterford Lakes Orlando FL.

Anne Hanson, Ph.D. of “Rat Behavior and Biology”–

Kevin R. Grazier, Ph.D.

Virginia Simpson, of “Virginia’s Rat Page,” for her words of wisdom in the care of rats.

Sandra Beasley, of “Sandra Beasley and the Spaz Rats,” for her encouragement and suggestions when the Medication Guide was just getting started on KuddlyKorner4u (look how far its come since its inception, Sandra!).

Lene Jorgensen and Owner of Rat Angelus

Missy of “Raisin’ Rats Rattery

Sandy Marshall

Melissa Pandajis

Marie Hibl

Zoo Tribe Rattery

Kat Becton

Ann and Emma of “Rock-a-Bye Ratties”

Jane Adamo

Andrea March

Heather Keith

Heide Walsh


Mousini’s Planet— Archived page from 2012-01-28 (via the Wayback Machine)

E. Brooks of Spoiled Ratten Rattery— Archived page from 2013-07-29 (via the Wayback Machine)

Janet and “Snowy”

Janice Dean and “Petey”

Julia (joolzratbag)

Jacinta Sousa

Shelagh Hall

Kelly J Walsh

Shoko Cameron

Brandi Saxton

Harold and Scampers

Karen Borga & Gwen Lindsey

Thank you all!


The Rat Guide and its affiliates accept no responsibility for misuse or misunderstanding of its information. This guide in whole or part, exists solely for the purpose of recognizing and understanding the care and illnesses in the pet rat. Please seek advice and treatment from a qualified Veterinarian if your rat is ill.

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Please note: Rat Guide email is not checked daily. Send e-mail to if you have an urgent medical problem with your pet rat. When possible, it is always best to take your rat to a qualified rat veterinarian.