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Morphology, growth rate, and thickness of the nail plate during the pregnancy.

Altan Ferhatoglu, Zeynep; Göktay, Fatih; Yasar, Sirin; Aytekin, Sema.
Int J Dermatol ; 57(10): 1253-1258, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30035300
Pregnancy causes some physiological skin changes, such as hyperpigmentation and striae gravidarum. Thickening of scalp hair and a prolonged anagen phase are also known to occur during pregnancy. However, a limited number of studies have been conducted on the effect of pregnancy on the nails. We aimed to investigate the effect of pregnancy on the morphology of the nail plate, specifically its growth rate and thickness. Pregnant women and a control group consisting of healthy female volunteers were included in the study. The distance from the apical point of the lunula to the midpoint of the free edge of the nail plate of the the thumb was measured with digital calipers. The measurement was repeated during the control visits and recorded in millimeters per day. The thickness of the nail plate of the thumb was measured at the midpoint of the free edge of the nail plate. A dermatological examination of the fingernails was performed for both groups. A survey was also conducted to identify any changes that occurred in the nails during pregnancy. The mean growth rate of the nail plate in pregnant women was 0.1 ± 0.05 mm/day, and in the control group it was 0.09 ± 0.05 mm/day. There was no statistically significant difference between the pregnant and control groups regarding the growth rate of the nail plate (P = 0.438). The mean thickness of the nail plate in pregnant women was 0.87 ± 0.19 mm, and in the control group it was 0.75 ± 0.17 mm. There was a statistically significant difference between the groups with respect to nail plate thickness (P < 0.001). A dermatological examination of the fingernails in the two groups did not reveal any statistically significant differences with respect to the nail findings. We determined in our study that pregnancy did not affect the growth rate and the morphology of the nails but increased the thickness of the nail plates.
Selo DaSilva