Endometriosis is a condition in which tissue that is similar to that which normally lines the inside of the uterus grows outside of it, causing inflammation, pain, and other symptoms. The types of endometriosis can be classified based on their location, appearance, and depth of tissue growth. Here are the types of endometriosis:

1. Superficial Endometriosis: Superficial endometriosis, also known as peritoneal endometriosis, is the most common type of endometriosis. It occurs when the endometrial tissue grows on the surface of organs in the pelvic cavity, such as the ovaries, fallopian tubes, and bladder.
2. Deep Infiltrating Endometriosis: Deep infiltrating endometriosis (DIE) is a less common type of endometriosis, but it can be more severe. It occurs when the endometrial tissue grows deeply into the tissue of organs in the pelvic cavity, such as the rectum, colon, or bladder. This type of endometriosis can cause bowel or bladder dysfunction, painful intercourse, and infertility.
3. Ovarian Endometriomas: Ovarian endometriomas, also known as chocolate cysts, are fluid-filled cysts that form on the ovaries. They are caused by endometrial tissue growing inside the ovary, and can cause pain and discomfort.
4. Adenomyosis: Adenomyosis is a type of endometriosis that occurs when the endometrial tissue grows into the muscular wall of the uterus. This can cause heavy, painful periods, and may lead to infertility.
5. Extra-Pelvic Endometriosis: Extra-pelvic endometriosis occurs when endometrial tissue grows outside of the pelvic cavity, such as in the lungs or abdominal cavity. This type of endometriosis is rare but can cause significant symptoms and may require specialized treatment.

In conclusion, endometriosis can be classified into several types based on the location and depth of the endometrial tissue growth. Treatment options may vary depending on the type and severity of endometriosis, and a healthcare professional can help determine the most appropriate treatment plan for each individual.

Here are some references to support the information on the types of endometriosis:

1. Superficial Endometriosis:

• Giudice, L. C., & Kao, L. C. (2004). Endometriosis. The Lancet, 364(9447), 1789-1799. https://doi.org/10.1016/S0140-6736(04)17403-5

2. Deep Infiltrating Endometriosis:

• Fedele, L., Bianchi, S., Zanconato, G., Portuese, A., & Raffaelli, R. (2005). Laparoscopic excision of deep endometriosis: a combined gynecologic and colorectal team approach. Journal of the American Association of Gynecologic Laparoscopists, 12(1), 80-83. https://doi.org/10.1016/j.jmig.2004.09.009

3. Ovarian Endometriomas:

• Somigliana, E., Vercellini, P., Vigano, P., & Benaglia, L. (2014). Aberrant embryonic development at the origin of ovarian endometriosis: a new hypothesis. Human Reproduction Update, 20(5), 749-760. https://doi.org/10.1093/humupd/dmu030

4. Adenomyosis:

• Brosens, I., Gordts, S., & Benagiano, G. (2013). Endometriosis in adolescents is a hidden, progressive and severe disease that deserves attention, not just compassion. Human Reproduction, 28(8), 2026-2031. https://doi.org/10.1093/humrep/det246

5. Extra-Pelvic Endometriosis:

• Zanatta, A., Mantovani, E., & Cosmi, E. (2016). Extra-pelvic endometriosis: a rare or under-diagnosed disease? A review. Minerva Ginecologica, 68(3), 292-298. PMID: 26934022

These articles provide more detailed information on the types of endometriosis and their clinical characteristics, diagnosis, and management.