The pelvis and perineum are complex regions that house reproductive, urinary, and certain gastrointestinal structures. Here are some common surgical interventions related to these areas:

1. **Pelvic Exenteration**: Removal of pelvic organs, often for advanced cancer. It can involve removal of the bladder, rectum, and part of the colon, depending on the disease's extent.

2. **Prostatectomy**: Removal of the prostate gland, primarily for prostate cancer.

3. **Transurethral Resection of the Prostate (TURP)**: Removal of a portion of the prostate through the urethra to treat benign prostatic hyperplasia (BPH).

4. **Cystocele and Rectocele Repair**: Surgical repair of the bulging of the bladder (cystocele) or rectum (rectocele) into the vagina.

5. **Hemorrhoidectomy**: Removal of hemorrhoids.

6. **Fistula Repair**: Treatment for abnormal connections between the vagina and rectum (rectovaginal fistula) or between the vagina and bladder (vesicovaginal fistula).

7. **Salpingectomy**: Removal of one or both fallopian tubes, sometimes for ectopic pregnancy or as a method for risk reduction in certain genetic mutations.

8. **Pelvic Floor Repair**: Surgery to treat pelvic organ prolapse, where pelvic organs drop due to weakened supportive tissues.

9. **Perineal Prostatectomy**: Removal of the prostate through an incision in the perineum.

10. **Perineal Repair**: Suturing tears or episiotomies that occur during childbirth.

11. **Vulvectomy**: Removal of part or all of the vulva, primarily for vulvar cancer.

12. **Bartholin's Cyst or Abscess Drainage**: A procedure to drain and sometimes place a small catheter in the Bartholin's gland, which can become blocked and infected.

13. **Urethral Sling Procedures**: Surgeries to address urinary incontinence, where a sling is placed around the urethra.

14. **Sacral Nerve Stimulation**: A treatment for overactive bladder and fecal incontinence.

15. **Anterior and Posterior Colporrhaphy**: Surgery to repair the front (anterior) or back (posterior) walls of the vagina, typically when they bulge or prolapse.

16. **Pelvic Lymph Node Dissection**: Removal of lymph nodes in the pelvis, usually to stage or treat certain cancers.

17. **Fecal Incontinence Repair**: Various procedures to address the inability to control bowel movements.

18. **Anal Fissure Surgery**: Surgery to treat a small tear in the thin, moist tissue lining the anus.

19. **Sphincterotomy**: Surgical procedure to treat chronic anal fissures or to aid in the passage of large stones during ERCP (a type of endoscopy).

These procedures can be indicated based on various conditions and diseases affecting the pelvis and perineum. As with any surgical procedure, it's essential to consult with the appropriate specialized surgeon for an understanding of potential risks, benefits, and alternatives.