This comprehensive provides an in-depth exploration of the principles, diagnosis, treatment, and management of animal diseases. Developed to meet the academic and clinical needs of veterinary students, practitioners, and educators, the book spans across fundamental concepts to advanced pathological conditions affecting domestic animals, particularly ruminants, equines, canines, and felines.

The initial chapters introduce readers to the history, scope, and foundational concepts of veterinary medicine, including the mechanisms of disease development, differential diagnosis, and prognosis. The book also emphasizes the importance of preventive medicine and outlines strategies for controlling infectious diseases through vaccination, biosecurity, and environmental management.

A significant portion of the book focuses on systemic and organ-specific disorders, beginning with general systemic states such as fever, shock, and allergic reactions. The digestive system section covers both common and complex conditions—ranging from simple indigestion and ruminal acidosis to gastric ulcers, colic, and diarrheal syndromes in various species. Similarly, the section on the urinary system addresses diseases such as cystitis, nephritis, renal failure, and feline lower urinary tract disorders, backed by clear diagnostic approaches and evidence-based treatment protocols.

Each chapter is structured to provide a clear understanding of the etiopathogenesis, clinical signs, diagnostic criteria, differential diagnoses, treatment strategies, and preventive measures. The book also highlights emerging conditions, species-specific responses, and the importance of fluid therapy, acid-base balance, and nutritional support in clinical recovery.

Rich in clinical relevance and aligned with veterinary curricula, this book is an essential guide for students preparing for examinations and for veterinarians involved in the diagnosis and management of internal medical conditions in animals.

1 History and scope of Veterinary Medicine    
2 Concepts of animal diseases    
3 Concepts of diagnosis    
4 Differential Diagnosis    
5 Treatment And Prognosis    
6 Control and Prevention of infectious diseases    
7 General Systemic States: Fever, Hypothermia, Hyperthermia, Septicaemia, Toxaemia, Shock and Coma    
8 Allergy, Anaphylaxis, Oedema    
9 Dehydration, acid base derangement and general principles of fluid therapy    
10 Diseases of Digestive System: Etiopathogenesis, clinical manifestations, diagnosis, differential diagnosis, treatment, prevention and control of following diseases of digestive system    
11 Manifestations and Principles of treatment of GIT diseases    
12 Diseases of oral cavity and oesophagus    
13 Simple indigestion    
14 Alkaline indigestion    
15 Ruminal acidosis    
16 Subacute ruminal acidosis    
17 Bloat    
18 Vagus indigestion    
19 Traumatic reticuloperitonitis    
20 Omasal impaction and caecal dilatation    
21 Diseases of abomasum: ulceration, impaction, left and right displacement    
22 Acute diarrhoea in adult ruminants and equines    
23 Chronic diarrhoea in adult ruminants and equines    
24 Calf diarrhoea    
25 Foal Diarrhoea    
26 Gastritis in dogs and cats    
27 Diarrhoea in dogs and cats    
28 Colic in horses    
29 Jaundice    
30 Diseases of Liver and Pancreas in Bovine    
31 Acute and chronic hepatitis in horses    
32 Chronic hepatitis and ascites in dogs, hepatic encephalopathy    
33 Pancreatitis, Exocrine pancreatic insufficiency in dogs    
34 Diseases of Urinary System:  Etiopathogenesis, clinical manifestations, diagnosis, differential diagnosis, treatment, prevention and control of following diseases of urinary system    
35 Manifestations and Principles of treatment of urinary system diseases    
36 Cystitis and Pyelonephritis    
37 Urolithiasis and Gout    
38 Glomerulonephritis and interstitial nephritis    
39 Nephrosis    
40 Renal insufficiency and failure, renal secondary hyperparathyroidism    
41 Feline lower urinary tract diseases and feline urolithiasis