March 2023 in “East African scholars journal of medical sciences” Metformin may help regulate periods and cause modest weight loss in PCOS patients, but more research is needed.
December 2022 in “Journal of Pharmaceutical Negative Results” Late onset of first period and irregular development of sexual traits in teenage girls can lead to poorer reproductive health.
38 citations
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May 2006 in “Archives of Gynecology and Obstetrics” Women with only irregular periods or excess hair have a better hormone profile than those with full PCOS, but both groups are similar, indicating a need for better PCOS diagnosis methods.
Exercising women with irregular periods have lower thyroid hormone levels and less body fat.
5 citations
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January 2017 in “Dermato-endocrinology” Postmenopausal women with past hirsutism or irregular periods have more heart and lung diseases.
1 citations
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July 2025 in “Journal of Chemical Biological and Physical Sciences” Women with PCOS have shorter reproductive periods and higher infertility rates compared to healthy women.
February 2024 in “Pediatrics in review” A 15-year-old girl with missed periods was diagnosed with a pituitary disorder and treated with hormones and steroids.
11 citations
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December 2017 in “Journal of the American Academy of Dermatology” The levonorgestrel intrauterine device for heavy periods may cause acne, hair loss, and excess hair growth.
9 citations
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January 2022 in “Reproductive Biology and Endocrinology” High levels of male hormones and irregular periods best predict how well PCOS patients will respond to metformin treatment.
May 2021 in “Journal of the Endocrine Society” A 23-year-old woman's missed periods were caused by a rare genetic disorder treated with hormone patches.
19 citations
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January 2013 in “Annals of Dermatology” Early high-dose steroid treatment helps prolong disease-free periods in severe alopecia areata.
16 citations
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August 2014 in “International Journal of Women's Health” The estradiol valerate/dienogest oral contraceptive helps with heavy periods, may improve acne and symptoms in PCOS, and doesn't affect sexual function.
4 citations
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January 2004 DanGuiBoHyulTangGami-Bang helps hair growth but doesn't extend the growth period or affect hair follicle cells significantly.
1 citations
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August 2015 in “PubMed” A woman with non-classic CAH had unusual heavy periods and high hormone levels, improved with treatment.
October 2023 in “IJEM case reports” A 15-year-old girl with no menstrual period was diagnosed with a genetic condition that makes her body unable to respond to male hormones, leading to female characteristics despite having male genetic makeup.
April 2020 in “Journal of the Endocrine Society” A 14-year-old girl with no menstrual period was diagnosed with Swyer Syndrome and treated for a related cancer risk.
November 2018 in “International Journal of Current Pharmaceutical Research” PCOS is a hormonal disorder causing symptoms like irregular periods and acne, and increases the risk of diabetes and heart disease.
Many women in Recife lack understanding of the climacteric period, needing better education and care.
1947 citations
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September 1995 in “New England journal of medicine/The New England journal of medicine” PCOS is a common hormonal disorder causing irregular periods and increased hair growth, linked to insulin resistance and long-term health issues.
30 citations
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July 2004 in “Fertility and Sterility” Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.
2 citations
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June 2007 in “PubMed” Alopecia in young calves is linked to longer illness periods and ruminal drinking, but the exact cause is unclear.
March 2026 in “International Journal of Reproduction Contraception Obstetrics and Gynecology” Homeopathy helped a 22-year-old woman with PCOS have regular periods.
February 2025 in “International Journal of Pharmaceutical Research and Applications” PCOS is a common disorder in women causing symptoms like irregular periods and weight gain, with management possible through lifestyle changes and medication.
December 2022 in “OBG Management” The conclusion is to diagnose PCOS with just hyperandrogenism and irregular periods, and treat with lifestyle changes and basic medications.
July 2021 in “Journal of medical pharmaceutical and allied sciences” Amenorrhea, or missing periods, is caused by various factors and is treated based on the specific cause.
51 citations
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May 1996 in “American journal of physiology. Regulatory, integrative and comparative physiology/American journal of physiology. Regulatory, integrative, and comparative physiology” Gray seals use more energy and have higher hormone levels during their annual fur-shedding period.
9 citations
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December 2008 Men with untreated male pattern hair loss continue to lose hair over a 5-year period.
7 citations
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May 2021 in “General and comparative endocrinology” Muskoxen's qiviut cortisol levels indicate their stress hormone activity over the hair growth period.
Melatonin reduces BMP2 gene expression in goat hair follicles during the resting period.
21 citations
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September 2004 in “Fertility and Sterility” Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.