November 2022 in “Journal of the Endocrine Society” A rare ovarian tumor caused high testosterone and excess hair in a woman, which was resolved after tumor removal.
December 2021 in “Aegean journal of obstetrics and gynecology” A woman's male-like physical changes were caused by two rare ovarian conditions.
October 2022 in “Journal of the ASEAN Federation of Endocrine Societies” GnRH-a or orchiectomy is more effective than anti-androgens for managing hormone levels in transgender women.
96 citations
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January 1940 in “Journal of Endocrinology” Complete adrenal removal causes more hair loss in rats than partial removal.
1 citations
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January 2018 in “Journal of SAFOMS” A rare ovarian tumor can cause unusual male-like symptoms, but surgery usually leads to a good outcome.
1 citations
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January 2010 in “Clinica Veterinaria De Pequenos Animales” The dog's fertility was restored with antibiotics and finasteride treatment.
17 citations
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May 2012 in “Clinical Endocrinology” Surgery to lower high testosterone in postmenopausal women with certain ovarian tumors doesn't significantly affect their metabolism.
7 citations
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January 2022 in “Case Reports in Endocrinology” Ovarian hyperthecosis can cause symptoms even with normal testosterone levels, and surgery can improve these symptoms.
6 citations
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February 2021 in “Journal of Ovarian Research” 150 kHz electromagnetic radiation might help improve PCOS in rats.
October 2024 in “Journal of the Endocrine Society” Rare ovarian tumors can cause hyperandrogenism, even if imaging appears normal.
27 citations
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April 2017 in “European journal of endocrinology” The research found that MRI and certain hormone levels can help tell apart ovarian tumors from hyperthecosis in postmenopausal women, but tissue analysis is still needed for a definite diagnosis.
December 2022 in “Journal of Medical Case Reports” A 20-year-old woman was found to have a rare ovarian tumor causing symptoms like acne and a low-pitched voice, which disappeared after the tumor was removed.
31 citations
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January 1989 in “The Prostate/The prostate” Estradiol and castration reduced prostate cancer development in rats when applied at early stages, but were ineffective after cancer was established.
January 1977 in “Case Reports in Medicine” Steroid cell tumors in the ovary are rare, can produce testosterone causing symptoms, and are mainly treated with surgery.
13 citations
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August 2016 in “Reproduction” High doses of nandrolone decanoate disrupt ovarian hormones and receptors in rats, with recovery only at lower doses and longer recovery times.
October 2024 in “Journal of the Endocrine Society” Ovarian stromal hyperplasia can cause high testosterone in postmenopausal women and is treated by removing the ovaries.
August 2013 in “Fertility and Sterility” PCOS may be influenced by factors in the blood, not just the ovaries.
January 2013 in “Reproductive Biology” April 2020 in “Journal of the Endocrine Society” A rare ovarian tumor caused high male hormone levels, but surgery fixed it.
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.
November 2022 in “Journal of the Endocrine Society” A woman's small ovarian tumor causing high androgen levels was missed by several scans but found during surgery.
19 citations
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January 1974 in “Laboratory animals” Zinc deficiency in female rabbits causes poor health and reproductive issues.
Check hormone levels and blood counts before surgery in dogs with abnormal blood cell counts.
1 citations
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July 2024 in “Journal of Assisted Reproduction and Genetics”
1 citations
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December 2017 in “Research for Rural Development/Research for Rural Development (Online)” Neutered ferrets often develop hyperadrenocorticism, with symptoms like hair loss and lethargy, and androstenedione is a key indicator for diagnosis.
9 citations
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January 2007 in “Endocrine Practice” A woman's male-like symptoms and high testosterone were due to ovarian hilus-cell hyperplasia, which improved after surgery.
April 2026 in “BMJ Case Reports” Leydig cell tumors can cause high testosterone in women and are treated by removing the ovaries.
11 citations
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November 2006 in “Journal of Veterinary Diagnostic Investigation” An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.
12 citations
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March 2018 in “Medicine” A postmenopausal woman's hirsutism and high testosterone levels improved after surgery for an ovarian tumor not seen on ultrasound.
May 2021 in “Journal of the Endocrine Society” A rare ovarian cancer with a good outlook was found in a woman with unusual hair growth and abdominal symptoms.