The immunoglobulin market, valued at US$ 13.36 billion in 2023, is projected to reach US$ 28.70 billion by 2034, driven by its use in treating immunodeficiency and other applications. Key growth factors include immunodeficiency disorders, infections, and thrombocytopenia. North America leads with a 46% share, while Asia-Pacific is expected to grow fastest due to increased health spending and prevalence of autoimmune diseases. Recent advancements include subcutaneous injection therapies and acquisitions by major pharmaceutical companies.