Dog Health

Canine Parvovirus (CPV-2) is an extremely contagious and potentially fatal viral disease. In unvaccinated puppies, mortality can reach 50-90%. Signs: bloody diarrhea, vomiting, fever, low white blood cell count, and dehydration. Transmission: contaminated feces and contaminated environments. The virus can survive outdoors for up to 1 year. Treatment: intensive supportive care such as IV fluids, antibiotics when indicated, and antiemetics. Prevention: the DHPPi vaccine is the most important core protection, and unvaccinated puppies should be kept away from high-risk communal environments.

The ideal timing depends on breed size. Small breeds: around 6 months. Large breeds: often 12-18 months, because early neutering may increase orthopedic risk in some lines. Benefits in females: the risk of mammary tumors is greatly reduced, especially if done before the first heat, and pyometra is prevented. Benefits in males: testicular cancer is prevented, some prostate problems become less likely, and roaming or aggression may decrease. Potential downsides: obesity risk increases, and in some breeds early neutering may be associated with osteosarcoma or orthopedic concerns.

Hip dysplasia is a developmental orthopedic disease caused by abnormal hip joint formation. Predisposed breeds: German Shepherds, Labradors, Golden Retrievers, Rottweilers, and Bulldogs. Signs: gait abnormalities, hindlimb weakness, exercise intolerance, and pain. Diagnosis: radiographs, commonly using OFA or PennHIP methods. Medical management: NSAIDs, glucosamine/chondroitin, omega-3 fatty acids, physical conditioning, and weight control. Surgical options: triple pelvic osteotomy, femoral head ostectomy, or total hip replacement. For breeding programs, unaffected parents should be selected whenever possible.

Dental disease affects roughly 80% of dogs over 3 years of age. Prevention: daily toothbrushing is the most effective method. VOHC-approved diets, dental treats, and chewing products can also help. Regular oral examinations and, when needed, professional dental cleaning are recommended. Untreated periodontal disease may contribute to adverse effects on the heart, kidneys, and liver.

Internal parasites such as Toxocara canis, Ancylostoma, Trichuris, Giardia, and Echinococcus are important for both canine and human health. Typical deworming plan: puppies are treated at 2, 4, 6, and 8 weeks of age. Adult dogs are usually treated 2-4 times per year, while dogs with higher outdoor exposure may need treatment every 3 months. Important: Echinococcus carries zoonotic risk and remains relevant in endemic regions including parts of Turkey. Fecal analysis is useful for choosing the most appropriate treatment.

External parasites matter both because they cause discomfort and because they transmit disease. Fleas: flea allergy dermatitis is one of the most common skin diseases in dogs. Ticks: they can transmit severe infections such as Babesia and Ehrlichia, and are also epidemiologically important in Turkey. Mange mites: some forms, especially sarcoptic mange, can affect humans as well. Effective control: regular use of spot-on products, oral isoxazolines, or preventive collars, together with environmental control when needed.

The most common heart diseases in dogs are myxomatous mitral valve disease (MMVD), especially in small breeds, and dilated cardiomyopathy (DCM), which is more common in certain large breeds. Signs: coughing, labored breathing, exercise intolerance, and fainting. Diagnosis: echocardiography, thoracic radiographs, ECG, and sometimes NT-proBNP testing. Treatment: may include pimobendan, furosemide, and ACE inhibitors depending on stage. Early diagnosis has a major effect on outcome.

Canine diabetes is usually insulin-deficient and more similar to type 1 diabetes. Risk factors: female sex, middle age, obesity, pancreatitis, and Cushing's disease. Signs: increased urination and drinking, weight loss, increased appetite, and cataract formation. Treatment: insulin therapy, often twice daily with products such as NPH or Caninsulin, together with a consistent diet that is often moderate to higher in fiber and built around complex carbohydrates. Spaying is recommended in intact diabetic females. Dose adjustments are based on glucose curves. Remission is uncommon in dogs, so lifelong insulin is usually required.

Cushing's disease is an endocrine disorder caused by excessive cortisol production. Signs: increased thirst and urination, increased appetite, a pot-bellied appearance, hair loss, muscle weakness, and thinning of the skin. Causes: a pituitary tumor, an adrenal tumor, or iatrogenic disease related to corticosteroid exposure. Diagnosis: often involves tests such as low-dose dexamethasone suppression, urine cortisol-to-creatinine ratio, and abdominal imaging. Treatment: trilostane is the most common medical option, although surgery may be appropriate in selected adrenal cases. Long-term monitoring is essential.

Epilepsy is one of the most common neurologic disorders in dogs. Possible causes: idiopathic epilepsy, brain tumors, infections, or metabolic disease. During a seizure: keep the dog safe from injury, never place anything in the mouth, and record the duration. Any seizure lasting longer than 5 minutes is an emergency. Treatment: medications such as phenobarbital, levetiracetam, or potassium bromide may be used depending on the case. Consistent follow-up is essential.

Obesity affects approximately 25-40% of dogs. Risks: diabetes, joint disease, increased cardiac and respiratory strain, and reduced lifespan. Management: calculate daily calorie needs, control portions carefully, increase regular exercise, and use a lower energy-density diet when appropriate. A reasonable target is 1-2% body weight loss per week. Veterinary supervision improves long-term success.

In Turkey, rabies vaccination is legally mandatory for dogs. The first dose is given from 3 months of age, followed by a booster after 1 year and then either annually or every 3 years depending on the product. Rabies is a fatal zoonotic disease. For travel to EU countries, a valid rabies vaccination and pet passport are required.

Canine Infectious Respiratory Disease Complex (CIRD), often called kennel cough, is a common infectious upper respiratory syndrome in dogs. Common pathogens: Bordetella bronchiseptica, CAV-2, canine parainfluenza virus, distemper virus, and Mycoplasma. Signs: a dry hacking cough, nasal discharge, and sometimes fever. Transmission: by aerosols and direct contact, especially in crowded dog environments. Prevention: Bordetella vaccination can help, and risk management is important in boarding, grooming, or shelter settings.

CKD becomes more common as dogs age and is usually staged using the IRIS system. Nutritional management: phosphorus restriction, appropriate protein adjustment according to stage, higher moisture intake, and omega-3 support. Medical management: blood pressure control, phosphate binders when needed, and regular blood and urine monitoring. Detecting the disease early improves prognosis and quality of life.

Dogs enter the senior stage at different ages depending on breed size. Small breeds: around 10-12 years. Large breeds: around 7-8 years. Common problems: arthritis, heart disease, CKD, Cushing's disease, diabetes, cognitive dysfunction, dental disease, and cancer. Care plan: veterinary examinations every 6 months, annual blood and urine testing, blood pressure measurement, and echocardiography when indicated. Early recognition of age-related disease improves quality of life.

Leptospirosis is a serious zoonotic bacterial disease caused by Leptospira species. Transmission: exposure to water or soil contaminated with urine from infected animals. Signs: fever, vomiting, diarrhea, jaundice, and kidney or liver failure. Prevention: vaccination in at-risk dogs, avoiding stagnant contaminated water, and good rodent control. Because leptospirosis can infect humans, prompt diagnosis and hygiene precautions are important.

Atopic dermatitis is one of the most common allergic skin diseases in dogs. Signs: itching, redness, recurrent ear infections, and licking of the feet. Diagnosis: clinical assessment, exclusion of parasites and food allergy, and allergy testing when indicated. Treatment: options may include oclacitinib, lokivetmab, cyclosporine, short-term corticosteroids, allergen-specific immunotherapy, and ongoing skin barrier support.

Babesiosis is a tick-borne blood parasite disease. Signs: fever, anemia, jaundice, reddish urine, weakness, and loss of appetite. Acute cases can be life-threatening. Diagnosis: blood smear examination and PCR are commonly used. Treatment: imidocarb together with supportive care such as fluids and, in severe anemia, possible transfusion. Prevention: effective tick control is the key measure.

Canine ehrlichiosis is a tick-borne rickettsial disease. Signs: fever, reduced appetite, weight loss, bleeding tendency, and thrombocytopenia. Chronic cases may lead to bone marrow suppression. Diagnosis: serology, PCR, and complete blood count findings are commonly used. Treatment: doxycycline for 4-6 weeks is the standard approach. Prevention: consistent tick control remains the main protective measure.

Canine leishmaniosis is a serious protozoal disease caused by Leishmania infantum. Transmission: through sand fly bites. It is endemic in some Mediterranean and coastal regions, including parts of Turkey. Signs: weight loss, skin lesions, overgrown nails, lymph node enlargement, and kidney failure. Treatment: often involves long-term allopurinol and, in some cases, antimonial drugs or miltefosine. Prevention: sand fly repellent collars or spot-ons, and careful protection in endemic areas.

Cancer is one of the leading causes of death in dogs. Common tumors: mast cell tumors, lymphoma, osteosarcoma, hemangiosarcoma, and mammary tumors. Early warning signs: a growing mass, wounds that do not heal, unexplained weight loss, lameness, or reduced appetite. Diagnosis: cytology, biopsy, and staging imaging. Treatment: surgery, chemotherapy, radiation therapy, or multimodal combinations depending on tumor type and stage. Consultation with a veterinary oncologist is often valuable.

Canine Cognitive Dysfunction Syndrome (CDS) is an age-related degenerative brain disorder often compared with Alzheimer's disease in people. Typical signs (DISHA): disorientation, altered sleep-wake cycles, reduced social interaction, loss of house-training, and changes in activity. Management: may include selegiline, omega-3 support, antioxidant-enriched diets, environmental enrichment, and regular exercise. Early recognition can help slow progression and improve function.

GDV, commonly called bloat with stomach torsion, is a life-threatening emergency in dogs. Predisposed dogs: large and deep-chested breeds. Signs: abdominal distension, repeated unproductive retching, restlessness, excessive salivation, and signs of shock. Treatment: emergency decompression, IV fluids, and surgery with gastropexy. Prevention: avoid very large single meals, reduce post-meal stress or vigorous activity, and consider prophylactic gastropexy in high-risk breeds.

Pancreatitis is inflammation of the pancreas. Risk factors: high-fat diets, obesity, breed predisposition, and prior episodes. Signs: vomiting, abdominal pain, poor appetite, diarrhea, and sometimes fever. Diagnosis: can involve cPLI testing, abdominal ultrasound, and biochemistry findings. Treatment: IV fluids, pain control, antiemetics, and early enteral nutrition rather than prolonged fasting. In the long term, a lower-fat diet is commonly recommended.

Common canine eye diseases: cataracts, glaucoma, dry eye (KCS), entropion or ectropion, and progressive retinal atrophy. Urgent warning signs: sudden blindness, a red painful eye, marked corneal cloudiness, or obvious swelling. Early veterinary ophthalmic assessment can prevent permanent vision loss in many cases.

OCD is a developmental disorder of joint cartilage, especially seen in young large-breed dogs. Patellar luxation is displacement of the kneecap and is common in smaller breeds. Signs: lameness, pain, altered gait, and reduced activity. Treatment: depends on severity and may involve conservative management, rehabilitation, or surgery. Early intervention may reduce long-term arthritic change.

Brachycephalic Obstructive Airway Syndrome (BOAS) is breathing impairment seen in short-nosed breeds. Signs: noisy breathing, snoring, exercise intolerance, heat intolerance, cyanosis, or collapse. Management: weight control, avoidance of heat stress, careful exercise planning, and surgical correction in selected cases. It is especially important in breeds such as the French Bulldog, Pug, and Bulldog.

The most common mistakes include: 1) free feeding, 2) unbalanced raw diets, 3) giving toxic foods such as onion, garlic, grapes, chocolate, or xylitol, 4) feeding bones that can fracture teeth or obstruct the gut, 5) feeding cat food, which may be too rich in protein and fat, 6) inappropriate supplement use, and 7) changing diets too abruptly. These errors can contribute to obesity, pancreatitis, diarrhea, and poisoning.