Internal Medicine for Dogs & Cats in San Antonio

We offer specialized knowledge, advanced diagnostics, and deep experience in the treatment and management of complex internal medicine problems in dogs and cats.
From hormonal imbalances to chronic kidney disease, our goal is to find what’s really going on inside and create a clear, effective treatment plan for your pet.

Internal Medicine for Dogs & Cats in San Antonio

We offer specialized knowledge, advanced diagnostics, and deep experience in the treatment and management of complex internal medicine problems in dogs and cats. From hormonal imbalances to chronic kidney disease, our goal is to find what’s really going on inside and create a clear, effective treatment plan for your pet.

A laboratory technician in green scrubs operates medical equipment among test tubes and monitors in a modern lab, with data displayed on a large wall screen.

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What Is Veterinary Internal Medicine?

Veterinary internal medicine focuses on diseases of the internal organs and body systems.

These conditions are often complex, chronic, or difficult to diagnose, and they require a combination of advanced diagnostics, medical expertise, and careful long-term management.

At Lili Veterinary Hospital, we’re experienced in managing a wide range of internal medicine problems in small animals and work with you to support your pet’s health over time.

A veterinarian gives an injection to a brown dog wearing a black collar while a woman, possibly the dog's owner, watches attentively in a veterinary clinic exam room.
A woman covers a golden retriever with a gray blanket on a bed. The dog looks ahead calmly, with a metal food bowl nearby. The scene appears cozy and caring, set in a softly lit room.A laboratory technician in green scrubs operates medical equipment among test tubes and monitors in a modern lab, with data displayed on a large wall screen.

Conditions We Commonly Manage

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Endocrinology (Hormone Disorders)

We are experienced in managing small animal endocrinology, including:

  • Diabetes mellitus
  • Cushing’s disease (hyperadrenocorticism)
  • Addison’s disease (hypoadrenocorticism)
  • Thyroid disorders (hyperthyroidism and hypothyroidism)

These conditions often need lifelong monitoring and medication, and we help you manage them safely and consistently.

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Gastroenterology (Stomach & Intestines)​

We diagnose and treat gastrointestinal diseases such as:

  • Chronic vomiting or diarrhea
  • Inflammatory bowel disease (IBD)
  • Pancreatitis
  • Malabsorption and weight loss

Our approach combines advanced diagnostics with tailored diets and medical therapies to keep your pet comfortable and stable.

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Respiratory Diseases

We evaluate and manage respiratory problems, including:

  • Chronic cough
  • Asthma and bronchitis
  • Pneumonia
  • Tracheal or airway disease

We use imaging and other tests to identify the cause and protect your pet’s ability to breathe comfortably.

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Infectious & Immune-Mediated Diseases

We treat a range of infectious and immune-mediated diseases, such as:

  • Tick-borne illnesses
  • Autoimmune conditions
  • Chronic infections that don’t respond to simple treatments

These often require careful diagnostics and long-term medical management.

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Kidney & Lower Urinary Tract Diseases

We are experienced in diseases of the kidneys and lower urinary tract, including:

Chronic kidney disease

Acute kidney injury

Recurrent urinary tract infections

Bladder inflammation or stones

Our goal is to protect kidney function, control symptoms, and maintain your pet’s quality of life.

Advanced Diagnostics for Internal Medicine

To get accurate answers, we use advanced diagnostic tools, including:

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Laboratory testing on blood, urine, and feces

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Imaging such as X-rays and ultrasound

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Blood pressure measurement

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Additional specialized tests as needed

Why Choose Lili Veterinary Hospital

At Lili Veterinary Hospital, we bring specialized internal medicine expertise and advanced diagnostics together to understand complex conditions thoroughly.

Our team provides clear, step-by-step treatment plans along with compassionate, long-term support tailored to each pet.

Located in Stone Oak, we focus on the whole patient—not just lab numbers—to ensure comfort, stability, and the best possible quality of life.