Chickenpox (varicella) is a very common childhood infection caused by the varicella-zoster virus. It is most common in children and increasing trend in adult. Adult chicken pox are more severe than childhood chicken pox.
Thrombocytopenia is frequently noticed in severe chicken pox. Materials and Methods: The study was conducted in a tertiary centre for infection disease Hospital at Kolkata in West Bengal, India. We included all the patients who were admitted with severe chicken pox. Severity of chicken pox are designated by four criteria (1) Rash extending to the palm and sole (2) Viseral varicella (3) Chicken pox pneumonia (4) chicken pox encephalitis. Result: Out of 608 chicken pox patients we included 100 patients. Out of 100 patient 80 patients had severe thrombocytopenia and developed different type of complications and 38 patients were died. Adult chicken pox is associated with thrombocytopenia. And thrombocytopenia is correlated with severe chicken pox. Thrombocytopenia is a good diagnostic and prognostic marker for severe chicken pox.
Conclusion: Thrombocytopenia is seen in adult chicken pox and severity of adult chicken pox is inversely related to platelet count.