Patient's question:
I have an itchy lower body, and my underwear is always yellow. What's going on? Can I take a pregnancy test two days before my period?Doctor's answer:
Considering the inaccuracy of tests taken before menstruation, it is advisable to observe the menstrual cycle in this case. If there is a delay in the cycle, it is best to undergo a re-examination. Additionally, it is recommended to visit the hospital promptly to have a blood hCG test to determine pregnancy. Pay attention to strengthening nutrition.After puberty, due to the stimulation of ovarian hormones, the mucous epithelial cells in the vagina are rich in animal starch. After being decomposed by vaginal bacteria, it turns into lactic acid, making the vaginal discharge slightly acidic. This helps prevent pathogenic bacteria from proliferating in the vagina, which is known as the self-cleansing function of the vagina. In laboratory tests, the pH value is commonly used to indicate acidity or alkalinity. The normal pH is 4.5, but during trichomoniasis or bacterial vaginosis, the pH of vaginal discharge can rise, potentially exceeding 5–6.