Shingles (Herpes Zoster)

Shingles, medically known as herpes zoster, is a viral infection characterized by a painful rash. While most commonly affecting older adults, it can occur at any age, particularly in individuals with weakened immune systems.

• Causes of Shingles:

The primary cause of shingles is the reactivation of the varicella-zoster virus (VZV), the same virus responsible for chickenpox. Several factors may contribute to it:

• Weakened Immune System: A weakened immune system can increase the risk of shingles. This can occur due to aging, underlying medical conditions (such as HIV/AIDS or cancer), or medications that suppress the immune system (such as corticosteroids or chemotherapy drugs).

• Aging: As people age, their immune system may become less effective at controlling latent viruses like the varicella-zoster virus. This makes older adults more susceptible to shingles.

• Stress: Physical or emotional stress may weaken the immune system and trigger the reactivation of the varicella-zoster virus in some individuals.

• Injury or Trauma: Trauma or injury to the nerves where the varicella-zoster virus is dormant may sometimes lead to shingles in that area.

• Underlying Medical Conditions: Certain medical conditions that affect the immune system or nerve function may increase the risk of shingles. These conditions include autoimmune diseases, diabetes, and cancer.