Common Dog Illnesses: How to Spot Them Early

If you own a dog, you want the very best for their health and wellbeing. Even with the most committed care, dogs can still be susceptible to various illnesses, some of which are common in the UK dog population. Understanding these illnesses and spotting early signs can make a crucial difference to your dog’s recovery and comfort.

Finding a puppy: Vaccines and Prevention

Many serious diseases in dogs, such as canine parvovirus and distemper, are almost entirely preventable through vaccination. Vaccinations also protect against infectious canine hepatitis and kennel cough, which can be highly contagious. Vaccines are usually started from eight weeks old, and your vet will advise on the best schedule to keep your dog safeguarded.

Spotting Serious Viral Diseases

Parvovirus (Parvo)

Parvovirus is highly contagious, mainly affecting unvaccinated young puppies. Signs include sudden vomiting, bloody diarrhoea, extreme lethargy and rapid dehydration. It progresses quickly and can be fatal without prompt veterinary treatment. Ensuring your puppy is vaccinated is the best prevention.

Canine Distemper

Also called 'hard pad', distemper is a serious viral infection that impacts the lungs, gut, and the central nervous system. Symptoms can range from fever and nasal discharge to more severe neurological signs such as seizures. Vaccination significantly reduces the risk.

Infectious Canine Hepatitis

This disease affects the liver and kidneys and is transmitted via contact with the bodily fluids of infected animals. It can lead to fever, jaundice and bleeding disorders. Vaccination is essential to protect your dog, especially if they are often outdoors or socialise with other dogs.

Parasitic Threats to Watch For

Lungworm

Lungworm is a parasite dogs can contract by consuming slugs, snails, or through contact with their trails in gardens. It causes coughing, laboured breathing, and sometimes lethargy or bleeding problems. Lungworm can also be symptomless, so regular worming with lungworm-specific products recommended by your vet is critical.

Tick-Borne Lyme Disease

Ticks carrying Lyme disease can attach to dogs in grassy or wooded areas. Symptoms include fever, joint pain, loss of appetite and lethargy. Applying flea and tick treatments monthly and checking your dog thoroughly after outdoor walks helps minimise risk.

Common Infectious Conditions

Kennel Cough

Kennel cough, caused by the bacterium Bordetella bronchiseptica, is highly contagious and characterised by a persistent, dry, hacking cough. Vaccination is often required for boarding or attending group dog activities.

Canine Coronavirus

Canine coronavirus affects the respiratory and digestive systems, often causing gastrointestinal upset and weakened immunity. While there is no routine vaccine, good hygiene and avoiding exposure to infected dogs help prevent transmission.

Lifestyle-Related Health Issues

Obesity

Obesity has become increasingly common and can lead to diabetes, arthritis, heart and respiratory problems. It often results from overfeeding, excessive treats and lack of exercise. Aim for a balanced diet recommended by your vet and maintain regular physical activity to keep your dog at a healthy weight. Veterinary weight clinics can provide tailored advice.

Leptospirosis

Leptospirosis is a bacterial infection spread through contaminated water and the urine of rodents. Dogs can suffer fever, vomiting, kidney and liver damage. Vaccination is available and advisable, particularly for dogs that have access to standing water or rural areas.

Overall Warning Signs to Monitor

Regardless of which illness you suspect, watch for any sudden or persistent changes in your dog’s behaviour or health, such as:

• Unusual lethargy or aggression
• Loss of appetite or rapid weight changes
• Vomiting, diarrhoea (especially if bloody)
• Persistent coughing or breathing difficulties
• Seizures or neurological changes
• Excessive itching or scratching
• Changes in bathroom habits

Early veterinary attention can be lifesaving. Regular check-ups, vaccinations, parasite prevention and responsible care ensure your dog enjoys a long, healthy life. Stay observant, provide appropriate medical care and enjoy the companionship of your beloved pet.