trichorrhexis nodosa…

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hair follicle anatomy, trichorrhexis nodosa, defect, in the hair shaft characterized by thickening, weak points, nodes, cause the hair to break off, group of conditions contributes, appearance of hair loss, lack of growth, damaged-looking hair, trichorrhexis, genetic basis but appears to be triggered by environmental factors, among african-americans, hair, appear not to grow, microscopic examination shows that the hair shafts have nodes, swellings near the scalp that break, hair actually grows but is broken, become long, among whites, defect often appears, ends, the hair shaft, splitting, the ends, thinning, whitish discoloration, directly related to environmental causes, "perming", blow-drying, aggressive brushing, excessive chemical exposure, trichorrhexis nodosa caused be an underlying disorder argininosuccinicaciduria, menkes' kinky hair syndrome, netherton's syndrome, hypothyroidism, trichothiodystrophy, hair appears not to grow, hair appears patchy, hair breaks close to scalp, hair has thickenings, nodes, in the shaft, ends of hair, thinned, split, hair tips have whitish discoloration, hair breaks at tips, examination, the hair shafts, a microscope, reveal changes of trichorrhexis nodosa, improving environmental factors, reduce damage, hair, gentle brushing, a soft brush should replace more aggressive brushing, ratting, procedures, harsh chemicals straightening compounds, permanents, avoided, hair should not be ironed, excessively harsh shampoo, avoided, hair conditioners, condition is self-limiting, improvements in grooming techniques, in environmental conditions, correct the abnormality, condition is not dangerous but, affect self-esteem, try home care measures, brush hair gently, avoid chemicals, no improvement, symptoms begin to appear, avoid aggressive brushing, grooming, strong chemicals, permanents, straightening, similar hair-damaging habits.