A woman’s menstrual cycle can trigger a host of illnesses, including cancers and autoimmune diseases.
But some women report they have no symptoms, a new study suggests.
It’s a common finding, said the study’s lead author, Dr. Elizabeth Giesbrecht.
Giesbeltsch, a clinical professor at University of Pennsylvania School of Medicine and director of the Center for Human Reproduction Research, is part of a growing body of research that suggests the timing of a womans menstrual cycle could influence her risk of disease.
The study, published this week in the Journal of the American Medical Association, looked at more than a dozen studies in the United States that examined the connection between women’s menstrual cycles and a host or types of illnesses.
The researchers focused on the period from March to May and found that those who had irregular cycles were more likely to have some form of autoimmune disease, such as multiple sclerosis.
The findings suggest women should not expect to avoid any diseases if they have a normal menstrual cycle.
They also highlight the importance of monitoring the timing and frequency of a womens cycle and understanding what it means for the health of her body.
A woman may be at her most fertile during her period, but she has other sources of estrogen in her system that could trigger autoimmune disease.
Giedsbeltschaft said she is working on a study that would look at a more extensive set of medical conditions and whether they could trigger an autoimmune disease during that period.
She said some of those conditions may be more common during periods of inflammation than others.
Giebeltscher said the link between irregular menstrual cycles, autoimmune diseases and the risk of cancer is “pretty strong.”
She said the researchers found that the frequency of menstruation and ovulation during a woman s cycles was associated with a greater risk of developing cancer.
It is not known exactly what triggers the autoimmune diseases, but the researchers believe that the timing might be important.
They believe the frequency might be related to the fact that when women are in the most fertile period of their cycle, they can also be more vulnerable to developing autoimmune diseases such as MS, according to Giesfeld.
Other studies have shown that when people have an autoimmune disorder, they are more likely than healthy people to develop other diseases.
That could also be true for women, Giesbach said.
“What we found is that there is a connection between the number of menstrual cycles a woman has and her risk for autoimmune diseases,” she said.
She and her co-author, Drs.
Emily Sussman and Stephanie Daugherty, looked more closely at people who were diagnosed with MS, Crohn’s disease and multiple sclerosis, which are autoimmune diseases that cause inflammation in the body.
“These were some of the most common autoimmune diseases among our participants, and they were the ones that were most common during the most active periods of their cycles,” Giesbeerttsch said.
The women in the study were recruited by medical centers, clinics or other healthcare providers to look at the frequency and duration of their periods and the frequency with which they ovulated, according the study.
They then took blood samples to measure levels of cytokines, which could indicate whether they had an autoimmune or inflammatory disease.
Researchers then compared the women with healthy women who did not have any autoimmune disease to those with autoimmune disease and found the frequency was related to how often a woman ovulated and to how many times a person had menstrual periods during their cycles.
Those with autoimmune diseases had significantly higher levels of inflammatory cytokines compared to healthy women, which suggested a higher risk of autoimmune diseases during ovulation and during periods, Giebach said