Final answer:
Trichorrhexis nodosa is a hair condition characterized by weak points along the hair shaft, resulting in breakage and the formation of small nodules. It can be caused by genetic disorders, excessive styling or heat treatments, chemical damage, or certain medical conditions.
Step-by-step explanation:
Trichorrhexis nodosa is the technical term for a hair condition characterized by weak points along the hair shaft, resulting in breakage and the formation of small nodules.
This condition can be caused by various factors, including genetic disorders, excessive styling or heat treatments, chemical damage, or certain medical conditions.
One example of a genetic disorder that can cause trichorrhexis nodosa is Netherton syndrome, which affects the proteins that make up the hair shaft.