Antibiotic use is not among the circumstances that can cause changes in menstruation. According to WebMD, the list of things reported to affect the menstrual cycle as of late 2014 includes only certain medications and varying health conditions. Fewer than a dozen medications in the Drugs.com database are associated with menstrual changes as a side effect.Continue Reading
The menstrual cycle can be affected by medications such as oral contraceptives ( birth control or "the pill") and some antidepressants, says the Mayo Clinic. Many factors and health conditions can contribute to period irregularity. These include age, eating disorders (bulimia, anorexia), pelvic inflammatory disease (PID), premature ovarian failure, uterine fibroids and poly-cystic ovary syndrome (PCOS). Hormonal disorders can also affect changes to a woman's cycle; thyroid patients have reported irregular menstrual periods, reports WebMD.
It is important for women to track their menstrual cycles and know what is normal for their bodies. If irregularities in menstruation are noticed, women should seek advice from their health care providers. Possible changes include periods that are heavier or lighter than usual, that start earlier or later than usual, or last for longer or shorter periods of time. Bleeding between periods is another sign women should watch for.Learn more about Side Effects
Antibiotics can cause an imbalance in the production of estrogen and progesterone in the body, which in turn can delay or cause an irregular menstrual cycle, states Menstrual Cycle Calculator. Antibiotics also interfere with the body's metabolic performance and regulation of hormones, which can decrease the effectiveness of birth control.Full Answer >
Perimenopause, extreme weight gain or loss, stress, medications, an endocrine disorder and metabolic syndrome can all create fluctuations in the menstrual cycle that can cause menstruation to occur earlier than usual, according to CNN. Any change in a menstrual cycle that lasts longer than three weeks should be evaluated by a gynecologist, according to CNN.Full Answer >
A menstrual period with a bright red and orange color can be normal since the colors of menstruation vary throughout the cycle. Women can experience bright red periods as well as blood with a dark brown or black color, WebMD says.Full Answer >
Bloating can occur up to two weeks before the start of the menstrual cycle through to the end of menstruation, according to Mayo Clinic. While hormonal changes, hereditary factors and diet cause bloating, there are some lifestyle changes that can minimize bloating caused by premenstrual syndrome.Full Answer >