10 Causes and Symptoms of Folliculitis

4. Weak immune system:

This condition is common in individuals that have a weak immune system such as immunosuppressed patients and infants. This is known as eosinophilic folliculitis, and it can occur in all parts of the body that have hair follicles. In infants, though, eosinophilic folliculitis most commonly occurs in the scalp area and does not have severe symptoms. Immunosuppressed patients such as people who have bone-marrow cancer, AIDS, or HIV, need to take drugs or medicines for treating these conditions. These medicines weaken the immune system of these individuals that make them more prone to eosinophilic folliculitis. Symptoms such as hyperpigmentation and large red bumps are commonly observed in individuals that have impaired immune systems.