Hippopotamus Foot Inflammation

What is it?

Hippopotamus foot inflammation is inflammation of the skin and underlying tissues of the feet. It mainly affects hippopotamuses kept in captivity, in zoos or wildlife parks. This condition resembles what is seen in other large mammals living on hard or persistently wet ground. It can range from simple superficial irritation to deep, painful abscesses.

In the wild, hippopotamuses spend much of their time in water or on soft, muddy ground, which naturally protects their feet. In captivity, prolonged contact with concrete surfaces, poorly maintained ground, or poor water quality promotes the development of this disease.

Commonly observed signs

These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.

Causes and risk factors

Foot inflammation usually results from repeated injury to the skin of the foot by hard, abrasive, or poorly maintained surfaces. Excessive moisture combined with dirty ground promotes skin maceration, which becomes more fragile and prone to secondary bacterial infection.

Opportunistic bacteria present in the environment can then colonize the initial lesions and cause deeper inflammation, or even abscess formation.

The main risk factors are concrete or hard-surface flooring without adequate resting areas, poor-quality or infrequently changed pool water, poorly cleaned enclosures, animal overweight, lack of exercise, and advanced age. Older animals or those in poorer general condition appear more susceptible.

Diagnosis and care

Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.

Treatment

Treatment typically combines local foot care, such as cleaning and disinfecting lesions, with antibiotic therapy if bacterial infection is confirmed or suspected. Anti-inflammatory or pain relief medications may be used to ease the animal's discomfort.

In cases of deep abscesses, surgical drainage may be necessary. Improvement of environmental conditions is part of the overall management plan; without these changes, recurrence is frequent.

Prevention

Possible complications

Without treatment, lesions can extend deeper and involve subcutaneous tissues, tendons, or even joints. Generalized infection remains a serious complication. Chronic pain can lead to prolonged loss of appetite and general weakness in the animal.

When to see a veterinarian

Prognosis

The prognosis is generally favorable if the disease is detected early and environmental conditions are corrected. Advanced forms with deep involvement or widespread infection require longer management and the prognosis becomes more guarded, particularly if joints or bones are affected.

Frequently asked questions

References

WOAH — Organisation mondiale de la santé animale (ex-OIE)

AVMA — American Veterinary Medical Association

Content reviewed by the TunisieVet editorial team · Updated 30 August 2026