Hello, I'm a health educator with a focus on reproductive health. When it comes to menstruation, the substances that are expelled from the body are a combination of blood, tissue, and mucus. The "gooey stuff" you're referring to is likely a mix of cervical mucus and endometrial tissue.

Cervical mucus is a clear or milky fluid produced by the cervix that changes in consistency throughout the menstrual cycle. It can become more viscous and stretchy around the time of ovulation to facilitate sperm movement. During menstruation, this mucus can mix with the blood and tissue from the uterine lining that is shed during the period.

The endometrial tissue is the lining of the uterus, which is shed during menstruation. This tissue can sometimes clump together and appear as a thicker, more solid substance when it's expelled from the body.

It's important to note that while some amount of tissue and mucus is normal during menstruation, if you notice a significant change in the amount or consistency of what you're experiencing, it's a good idea to consult with a healthcare professional.

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It's perfectly normal to notice some clumps from time to time during your period. These are blood clots that may contain tissue. As the uterus sheds its lining, this tissue leaves the body as a natural part of the menstrual cycle. So clots of tissue are usually nothing to be concerned about.read more >>