India, Feb. 8 -- Menstruation is the condition of normal vaginal bleeding that happens during a woman's monthly cycle. When pregnancy does not occur, the uterus sheds its lining triggered by falling progesterone levels. However, it is important to understand what's normal and what needs medical intervention in menstruation.

In an interview with HT Lifestyle, Dr. Swati Bhargav, consultant gynaecology and obstetrics, head - Medyshe by Medyseva, explained:

Color of menstrual blood: Bright red colour denotes Fresh menstrual blood, typically at the beginning of the period while dark red or brown is older blood that has taken longer to leave the uterus, which is also normal, especially at the end of the period. Sometimes blood can appear pink...