Free testosterone levels during the menstrual cycle in obese versus normal women

Fertil Steril. 1989 Mar;51(3):535-7. doi: 10.1016/s0015-0282(16)60571-x.


In a group of seven normally ovulating moderately obese women, testosterone parameters were studied throughout the menstrual cycle and compared with values obtained in normal-weight control women. Plasma T, percent free T (unbound), and free T concentrations were higher and exhibited little variation during the phases of the cycle compared with the normal-weight controls. Testosterone production and its parameters thus are higher in even moderately obese women.

MeSH terms

  • Adult
  • Estradiol / blood
  • Female
  • Follicular Phase
  • Humans
  • Luteal Phase
  • Menstrual Cycle*
  • Obesity / blood*
  • Progesterone / blood
  • Testosterone / blood*


  • Testosterone
  • Progesterone
  • Estradiol