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Estrogen Dominance &
Low Progesterone Symptoms

Progesterone is a sex hormone that works alongside Estrogen to create regular menstruation and a healthy reproductive system in women. Men have progesterone too but it’s far more relevant to women’s health issues. Progesterone helps to calm and manage the stimulating effects of Estrogen. They quite often have opposite functions so when Estrogen levels are high or progesterone levels are low you can experience unwanted side effects that relate to all areas of your life. They can be physical symptoms or physiological symptoms.

How is progesterone produced?

Progesterone is part of a group of hormones called Progestogen. Progesterone is produced during the second part of your menstrual cycle, after ovulation takes place. The Corpus Luteum in the Ovaries produce it and release it into the blood stream. It then circulates around your body working together with other sex hormones like estrogen and testosterone.

If not enough progesterone is produced it is called progesterone deficiency or having low progesterone. This leads to an overall hormonal imbalance as the hormones are not working together as they should be - they are therefore unbalanced.

Symptoms of Low Progesterone

There are many symptoms of low progesterone, also known as progesterone deficiency. Here are the most common complaints from women:

  • Mood swings, anxiety & depression
  • General aches/pains and low energy levels
  • Weight gain
  • Irregular menstrual bleeding
  • Menorrhagia (Heavy menstrual bleeding)
  • Bladder control & frequent infections
  • Hot flashes
  • Night sweats
  • Sleep disturbances
  • PMS (Premenstrual Syndrome)
  • Vaginal dryness
  • Fibrocystic breast disease
  • Breast cancer
  • Postpartum depression
  • Infertility
  • Early miscarriage
  • Endometriosis
  • PCOS (Polycystic Ovarian Syndrome)

These low progesterone symptoms can also happen if you produce enough progesterone but your levels of Estrogen are too high. In this case it’s called Estrogen dominance and not progesterone deficiency. It means that the progesterone isn't enough to calm the effects of Estrogen that goes around your body stimulating cells and reactions.

Estrogen and progesterone work together. This table shows how they work together in many functions. One example is based on maintaining the womb lining (which ultimately controls your monthly cycle regularity and level of bleeding). Estrogen works to build up uterine lining. Progesterone maintains the uterine lining once it’s there.

Builds up uterine lining
Maintains uterine lining (secretory)
Builds up body fat
Helps use fat for energy
Depression, headache/migraine
Interferes with thyroid hormone
Facilitates thyroid hormone action
Increases blood clotting
Normalizes blood clotting
Decreases Libido
Restores Libido
Impairs blood sugar control
Regulates blood sugar level
Increases risk of endometrial cancer
Protects from endometrial cancer
Increases risk of breast cancer
Probable prevention of breast cancer