Investigating the effect of herbal medicine on the severity of menstrual bleeding in human studies: a systematic review

Menstrual bleeding is the most common complaint of women, and more than 50% of women worldwide suffer from it. The imbalance of prostaglandin secretion from the endometrium in the menstrual cycle is effective in primary dysmenorrhoea and menstrual bleeding. Today, due to the side effects of chemical drugs and the remarkable effectiveness of medicinal plants, people are inclined to use medicinal plants. For this purpose, the present study was conducted to investigate the role of medicinal herbs in the intensity and volume of menstrual bleeding. In this study, Magiran, SID, Google Scholar, Cochrane, Pubmed, Scopus, Web of Science, and Web of Knowledge databases with Persian keywords menstrual bleeding and herbs, herbs and menstrual bleeding, the intensity of menstrual bleeding and the severity of menstrual bleeding and clinical trial and its English equivalent were searched without time limit. At first, 626 articles were reviewed, then 36 articles matching the study inclusion criteria were reviewed, and finally, 12 articles that were in line with the research objectives were fully used. Based on the results, several plants of lavender, fennel, European thyme (garden), chamomile, sage, rosemary, honey, ginger, vitagenus, valerian, and flax seed can reduce the intensity and volume of bleeding with dysentery. The primary menorah should be effective. The use of medicinal plants with analgesic, antioxidant, anti-bloating, and anti-inflammatory properties can be used as a supplement and replacement for chemical drugs in reducing the intensity of bleeding associated with primary dysmenorrhea.