Clinical Study Striae Gravidarum, Acne, Facial Spots, and Hair Disorders: Risk Factors in a Study with 1284 Puerperal Patients Isadora da Rosa Hoefel , 1 Magda Blessmann Weber, 2 Ana Paula Dornelles Manzoni, 2 Bárbara Hartung Lovato, 3 and Renan Rangel Bonamigo 1,2,4 1 Program of Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil 2 Dermatology Service of Santa Casa de Porto Alegre, Porto Alegre, Brazil 3 Faculdade de Medicina de Jundiaí, Brazil 4 Dermatology Service of Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil Correspondence should be addressed to Isadora da Rosa Hoefel; isadorahoefel@yahoo.com.br Received 2 January 2020; Accepted 15 April 2020; Published 19 May 2020 Academic Editor: Luca Marozio Copyright © 2020 Isadora da Rosa Hoefel et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective. To determine the prevalence of skin changes during pregnancy and to relate their occurrence to specific factors in a population of south Brazil. Methods. A cross-sectional analytical study was carried out with 1284 puerperal patients. A questionnaire about skin changes during pregnancy was developed and applied by the authors to all puerperal women admitted in a tertiary hospital in south Brazil. Results. The appearance of striae during pregnancy was reported by 633 women (49.5%) and had a statistically significant association with primiparity, presence of stretch marks before pregnancy, and gestational weight gain above 21 kg. Facial blemishes were reported by 33.9% (n = 434) and were associated with a positive family history, multiparity, and the use of facial sunscreen (p <0:0001). The onset or worsening of acne was identified in 35.7% (n = 456) and was statistically associated with primiparity and Fitzpatrick phototypes IV and V. Hair alterations were reported by 44.5% (n = 569) and were associated with primiparity (p =0:029). Conclusion. Although most of the skin changes during pregnancy are considered “physiologic,” they can cause significant discomfort. Thus, it is important to know them and to understand which risk factors may be associated with such changes. 1. Introduction Pregnancy influences virtually all the maternal organic sys- tems, which undergo significant modifications to allow reten- tion and intrauterine development of the fetus. During pregnancy, the female body undergoes numerous hormonal, metabolic, immunological, and vascular changes [1]. In the skin and mucous membranes, pregnancy causes physiological changes, which can be divided into pigment alterations, hair alterations, nail alterations, skin gland alter- ations, and vascular alterations [2]. Many of these occur due to increased endocrine activity, in particular by increased production of the hormones progesterone and estrogen [3]. Although rare, there are also specific diseases of gestation, and the most common are pruritus of pregnancy, pemphigoid gestationis or herpes gestationis, polymorphic dermatitis of pregnancy, and impetigo herpetiformis [4]. In addition, autoimmune skin diseases often worsen during pregnancy, mainly systemic lupus erythematosus, dermatomyositis, and pemphigus [5]. Considering the multiplicity of physiological skin alter- ations that occur during pregnancy and the stigma they gener- ate, few studies have attempted to analyze the epidemiological aspects related to the subject, something which could facilitate better management of such problems [6, 7]. Although physio- logical, these alterations can persist long after the gestational period and have a considerable impact on the patients’ quality of life [3]. Hindawi Journal of Pregnancy Volume 2020, Article ID 8036109, 7 pages https://doi.org/10.1155/2020/8036109