Piedra

Piedra is a condition of the hair shafts caused by a fungal infection. There are two types of piedra: black piedra and white piedra. Black piedra is caused by the fungus Piedraia hortae and is commonly found in tropical climates. White piedra is caused by several species of fungi in the genus Trichosporon and is found worldwide.

Causes

Black piedra is caused by the fungus Piedraia hortae. This fungus is commonly found in tropical climates. White piedra, on the other hand, is caused by several species of fungi in the genus Trichosporon. These fungi are found worldwide.

Symptoms

The main symptom of piedra is the presence of hard nodules on the hair shaft. These nodules can be either black or white, depending on the type of piedra. Other symptoms may include brittle hair, hair loss, and itching.

Diagnosis

Piedra is diagnosed by examining the affected hair under a microscope. The nodules on the hair shaft are usually visible. A culture of the fungus may also be done to confirm the diagnosis.

Treatment

Treatment for piedra involves cutting or shaving off the affected hair. Antifungal medications may also be prescribed. In severe cases, the affected hair may need to be removed.

Prevention

Prevention of piedra involves maintaining good personal hygiene. This includes washing the hair regularly and avoiding sharing personal items like combs and hair brushes.

See also

• Dermatophytosis
• Tinea capitis
• Tinea corporis
• Tinea cruris
• Tinea pedis

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