(L67.0) Trichorrhexis nodosa

Trichorrhexis nodosa is a hair disorder characterized by weak, brittle hair that is prone to breakage and fraying. it is caused by the weakening of the hair shaft due to physical or chemical damage, which leads to the formation of nodules along the shaft. these nodules can range in size from a few millimeters to several centimeters and can cause the hair to break off at the site of the nodules.

Trichorrhexis nodosa is a hair shaft disorder caused by mechanical or chemical trauma, resulting in the formation of weak spots along the hair shaft that eventually leads to breakage. this is due to the weakening of the hair shaft cuticle, which is caused by the accumulation of inflammatory cytokines and the disruption of the normal keratinization process. this leads to the formation of nodular lesions along the hair shaft, which can be seen under a microscope.

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• Obtain a detailed medical history including any previous treatments or medications.
• Perform a physical examination to identify any signs of the disease.
• Order a scalp biopsy to confirm the diagnosis.
• Perform a complete blood count (CBC) to check for any abnormalities.
• Order a skin scrapings test to detect any fungal or bacterial infection.
• Perform an imaging study such as X-ray or MRI to check for any structural changes in the scalp.
• Order a laboratory test to measure the levels of proteins and electrolytes in the blood.

Additions:

• Perform a hair pull test to identify any hair loss.
• Order a trichoscopy to examine the scalp and hair under a microscope.

Main goal of the treatment: To reduce the occurrence of Trichorrhexis nodosa

• Identifying and avoiding potential triggers such as excessive brushing and chemical treatments
• Using a mild shampoo and conditioner
• Using a wide-toothed comb to detangle hair gently
• Applying a moisturizing hair mask once a week
• Using a soft brush with natural bristles
• Avoiding hairstyles that pull on the scalp
• Using a low-heat setting when blow-drying hair
• Applying a leave-in conditioner or hair oil
• Using a humidifier in dry environments

Trichorrhexis nodosa can be prevented by avoiding excessive heat styling and chemical treatments, such as bleaching and perms, as well as using a mild shampoo and conditioner. additionally, it is important to use a wide-toothed comb and avoid brushing hair when wet, as this can cause excessive breakage.