11 citations,
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.
70 citations,
March 2016 in “Urologic Clinics of North America” The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.
October 2023 in “BMC endocrine disorders” A pineal tumor caused a boy's early puberty, which changed from peripheral to central after treatment.
78 citations,
November 2008 in “Fertility and Sterility” Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.
8 citations,
September 2016 in “Reviews in Endocrine and Metabolic Disorders” Skin health and diseases are closely linked to metabolic processes.