Hyper IgM syndrome can have the following syndromes: * Infection/Pneumocystis pneumonia (PCP), which is common in infants with hyper IgM syndrome, is a serious illness. PCP is one of the most frequent and severe opportunistic infections in people with weakened immune systems. * Hepatitis (Hepatitis C) * Chronic diarrhea * Hypothyroidism * Neutropenia * Arthritis * Encephalopathy (degenerative)
Hyper-IgM syndrome type 2
Hyper-IgM syndrome type 5
Hyper-IgM syndrome type 1
Hyper-IgM syndrome type 3
Hyper-IgM syndrome type 4
Hyper IgM syndrome
Anti-IgLON5 disease
Wiskott–Aldrich syndrome