The Use of "Natural" Substances for Menstrual Hygiene: A Case Report of an Embedded Vaginal Sea Sponge

BACKGROUND

In early adolescence, irregular menstrual bleeding patterns are common and are frequently due to anovulatory cycles or bleeding disorders. As such, the diagnosis of a vaginal foreign body might initially be missed.

CASE

We describe a 14-year-old adolescent female presenting with ongoing irregular menstrual spotting despite reassuring laboratory workup and ultrasonography. She was found to have an embedded vaginal sea sponge eroding through the vaginal wall. On further discussion, she reported using a natural sea sponge for menstrual blood absorption.

SUMMARY AND CONCLUSION

In cases of persistent vaginal spotting, vaginal foreign body should be considered in the differential diagnosis. Use of nontraditional menstrual hygiene products could lead to medical complications and negative health outcomes in adolescents.

Recent Advances of Marine Sponge-Associated Microorganisms as a Source of Commercially Viable Natural Products

Many industrially significant compounds have been derived from natural products in the environment. Research efforts so far have contributed to the discovery of beneficial natural products that have improved the quality of life on Earth. As one of the sources of natural products, marine sponges have been progressively recognised as microbial hotspots with reports of the sponges harbouring diverse microbial assemblages, genetic material, and metabolites with multiple industrial applications. Therefore, this paper aims at reviewing the recent literature (primarily published between 2016 and 2022) on the types and functions of natural products synthesised by sponge-associated microorganisms, thereby helping to bridge the gap between research and industrial applications. The metabolites that have been derived from sponge-associated microorganisms, mostly bacteria, fungi, and algae, have shown application prospects especially in medicine, cosmeceutical, environmental protection, and manufacturing industries. Sponge bacteria-derived natural products with medical properties harboured anticancer, antibacterial, antifungal, and antiviral functions. Efforts in re-identifying the origin of known and future sponge-sourced natural products would further clarify the roles and significance of microbes within marine sponges.