Prostaglandins are hormones released before the period that, when in the bloodstream, cause nausea, diarrhea, cramps and aches, according to Molly O'Shea, health expert at U by Kotex. However, the Period Vitamin also states that nausea before or during the menstrual cycle can be a symptom of endometriosis.
Vitamin B deficiency or an imbalance of sugars can also contribute to nausea before periods, warns the Period Vitamin.
Nausea is a common symptom of premenstrual syndrome, often abbreviated to PMS, says O'Shea. To treat it, she recommends taking water and ibuprofen three times per day one or two days before the period starts. Ideally, the ibuprofen blocks the prostaglandins, mitigating or eliminating their side effects. Ibuprofen also works on migraine headaches that cause nausea during periods.
However, if the ibuprofen does not work, the Period Vitamin suggests taking antacids to relieve the build-up of stomach acids caused by sudden hormonal changes in the body. Mint tea contains menthol, the active ingredient for nausea relief, while ginger has been proven to affect menstruation-related nausea and vomiting.
While nausea is common for those who suffer from endometriosis, the Period Vitamin warns that nausea is not the primary symptom. Endometriosis is characterized by the extreme pain that occurs due to the growth of endometrium outside of the uterine lining.