Comprehensive Care for Immunodeficiency in San Antonio

Expert Diagnosis, Personalized Treatment, and Compassionate Care for Individuals with Immune System Disorders

Tired of getting sick all the time? We help you uncover the cause of frequent infections and develop a treatment plan to strengthen your immunity and restore your health.

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What Is Immunodeficiency?

Immunodeficiency is the inability of your immune system isn’t able to function properly due to a number of factors. You become more vulnerable to infections, slowing your recovery. In some cases, it can lead to life-threatening health problems. 


Immunodeficiency can be classified into two types: primary and secondary immunodeficiency.

What Is Primary Immunodeficiency?


Primary immunodeficiency (PI) is an inherited condition and not caused by external factors. 

People with PI are more likely to experience frequent, severe, or long-lasting infections. While some cases appear in infancy, others may not show symptoms until later in life.

Those at higher risk include:

  • Individuals with a family history of immunodeficiency
  • Children with repeated infections
  • Adults with unexplained, recurring illness

What Is Secondary Immunodeficiency?


Secondary immunodeficiency develops later in life due to external factors that weaken the immune system. Common causes include:

  • Chronic illnesses such as cancer, HIV, or diabetes
  • Medical treatments like chemotherapy, radiation, or long-term steroid use
  • Medications that suppress the immune system
  • Malnutrition or vitamin deficiencies
  • Aging and natural immune decline
  • Chronic stress or poor sleep over time

Because it is acquired, the symptoms may not appear right away. But if you’re getting sick more often or taking longer to recover, it could be a sign your immune system needs attention.

Why Early Diagnosis Matters

Immunodeficiency often hides behind recurring sinus infections, pneumonia, or gut issues that just won’t go away. If left untreated, it can lead to long-term complications. 


Getting an early immunodeficiency diagnosis can:

  • Prevent repeat infections
  • Reduce hospital visits
  • Improve your quality of life
  • Help you and your family better understand how to stay well

Common Symptoms of Immunodeficiency

If your immune system isn’t functioning properly, your body sends out warning signs. Here’s what to watch out for:



  • Recurrent ear, sinus, or lung infections
  • Infections that don’t fully clear after one round of antibiotics 
  • Slow or poor wound healing
  • Chronic diarrhea or digestive problems
  • Persistent fatigue or general weakness

What Causes Immunodeficiency?

Several factors can lead to a weakened immune system. These include:



  • Genetic conditions (common in primary immunodeficiency)
  • Certain cancers
  • Chemotherapy or radiation treatments
  • Autoimmune diseases
  • Malnutrition or the natural aging process


Understanding the root cause is the first step toward finding the right solution, and we’re here to help you get there. 

How Immunodeficiency Is Diagnosed

Diagnosing immunodeficiency starts with understanding your medical history and the pattern of your symptoms. From there, specific lab tests help identify how well your immune system is functioning.


The diagnostic process may include:

Immunoglobulin Level Testing

Measures key antibodies to assess your immune system’s ability to fight infections.

Vaccine Response Evaluation

Checks how well your body builds protection after vaccinations.

White Blood Cell Analysis

Examines immune cell counts and types to spot irregularities.

Genetic Disorder Screening

Detects inherited conditions linked to primary immunodeficiency.

Your Partner in Building a Stronger Immune Defense

Effective care starts with the right approach. Our San Antonio immunodeficiency specialist will tailor your treatment plan to your unique needs, addressing your specific type of immunodeficiency and how it’s affecting your life. Treatment may include:

Immunoglobulin (Ig) Replacement Therapy

Provides the antibodies your body can’t make on its own, helping prevent serious infections. 

Antibiotic Prophylaxis

Prevents frequent or severe infections by stopping bacteria before they spread.

Vaccinations

Triggers immune protection against specific diseases your body may struggle to fight naturally. 

Nutritional Guidance

Supports immune function by identifying and correcting nutrient deficiencies.

Coordination with Specialists

Ensures you receive comprehensive care for related conditions, improving long-term health.

Reclaim Your Health and Quality of Life


If you think you or your child might have an immune system problem, don’t wait. The sooner we identify what’s going on, the sooner we begin the right immunodeficiency treatment. We’re here to help you regain control of your health with answers and expert care. 

Talk to Our Experts

Frequently Asked Questions

  • I’ve had multiple infections, but my standard lab tests are normal. Could it still be immunodeficiency?

    It’s possible. Some immune deficiencies don’t show up on basic bloodwork. Advanced or functional immune testing may be needed to get a clear picture. 

  • Will I have to take medication for life if I’m diagnosed with immunodeficiency?

    Not always. Some types of PI are so mild that people aren’t diagnosed until adulthood, often after years of unexplained infections or health issues. 

  • Can stress or poor sleep weaken my immune system enough to mimic immunodeficiency?

    Chronic stress and poor sleep can temporarily weaken immune function, but they don’t cause true immunodeficiency. If symptoms persist or infections are unusually frequent, it’s worth investigating further.