Common diseases and ailments of horses and ponies

Your horse or pony is likely a cherished part of your life, representing not only a financial investment but also a beloved companion. Understanding common diseases and ailments they may face is vital for responsible ownership and ensuring their lasting health and happiness.

Common Joint and Muscle Conditions

Arthritis is a frequent condition in older horses and ponies, characterised by inflammation of the joints. This causes swelling, pain, and stiffness, often visible and detectable when flexing the affected area. Early veterinary diagnosis and management, including pain relief and adapted exercise, can improve comfort and mobility.

Azoturia (Equine Rhabdomyelosis) results from muscle damage linked to overfeeding, overwork, or imbalances like vitamin deficiencies. Signs include hard, painful muscles, stiffness, reluctance to move, and an awkward gait. Immediate veterinary attention is essential as this condition can be very painful and impact performance.

Infectious Diseases to Watch For

Equine Herpesvirus (EHV), sometimes called rhinopneumonitis or "the snots," causes respiratory illness with nasal discharge and cough. It spreads easily among horses, especially young animals, and vaccination is recommended to reduce outbreaks.

Strangles is a highly contagious bacterial infection causing painful swelling and abscesses around the throat glands. Without prompt veterinary care, it can restrict breathing and become life-threatening. Good biosecurity and isolation of affected horses help limit spread.

Equine Influenza (Horse Flu) presents with fever, cough, and nasal discharge. Though often self-limiting, it can seriously affect equine health and is highly contagious. Vaccination is a key preventative measure.

Equine Infectious Anaemia (Swamp Fever) is a blood-borne viral infection transmitted by biting insects and bodily fluids. It causes recurring fever and anaemia; some horses become carriers without symptoms. Vaccination exists but is not widely used across the UK.

Tetanus (Lockjaw) arises from bacterial infection through wounds, producing stiffness and muscle spasms, often fatal if untreated. Essential vaccination protects your horse from this serious disease.

External Parasites and Skin Conditions

Bot flies (bots) lay tiny yellow or orange eggs around a horse's mouth, nose, mane, and legs. Removing eggs promptly with a specialised "bot knife" helps prevent harmful larval stomach infestations.

Mud rash and rain scald are caused by the bacterium Dermatophilus congolensis, thrive in damp conditions, and cause hair loss, soreness, and scabbing—especially in horses with white legs and pink skin. Treatment involves careful scab removal, antibacterial washes, and barrier creams.

Ringworm is a fungal infection causing circular hair loss patches and raised skin lesions. Highly contagious to both horses and humans, good hygiene and isolation of affected animals is important to prevent spread.

Thrush is a bacterial hoof infection characterised by a distinctive unpleasant smell and blackened infected tissue around the frog. Regular hoof care and clean, dry environments help prevent this condition.

Hoof and Digestive Disorders

Laminitis is an inflammatory condition of the hoof tissue causing intense pain and lameness. Hooves feel hot and sensitive, and horses may avoid standing. Early veterinary intervention is critical to minimise lasting damage.

Navicular disease affects a horse's front heels, often caused by poor shoeing or hard ground. Affected horses develop a short, awkward gait. Proper hoof care and farriery can reduce risk.

Colic describes abdominal pain with numerous possible causes, from digestive upset to twisted gut, requiring urgent veterinary care. Signs include restlessness, pawing, rolling, constipation, and excessive salivation.

Worms and internal parasites such as roundworms and tapeworms pose serious health risks if untreated, potentially leading to colic, weight loss, and poor condition. Regular worming, good pasture management, and manure clearing are essential preventative steps. Parasites can also affect humans, so hygiene during handling is important.

Essential Care and When to Seek Help

Regular health checks, appropriate vaccination schedules, balanced nutrition, and suitable exercise are cornerstones of equine health. Awareness of common diseases and their signs enables early detection and intervention, often making a difference between quick recovery and chronic problems.

Always consult a veterinary surgeon promptly if you suspect your horse or pony is unwell. Responsible ownership and prompt care help your equine partner lead a happy, pain-free life.

To explore horses and ponies through reputable breeders and find your ideal companion, always prioritise health and welfare considerations.