Lumbar and sacral pain, irregular menstruation, leukorrhea, vulvar protrusion, dysmenorrhea, hernia, lower limb atrophy and numbness, as well as sciatica, and pelvic inflammatory disease.

The collective term for Upper Bone Hole (BL-31), Second Bone Hole (BL-32), Middle Bone Hole (BL-33), and Lower Bone Hole (BL-34) , with two on each side, totaling eight. Please refer to the specific locations of each acupoint mentioned above.

Sure, I will translate the provided instructions into English.

Step 1: Lie prone;
Step 2: Determine the posterior superior iliac spine: Starting from the highest point of the pelvis, feel inward and downward along the sacral horns on both sides to identify a prominent bony protrusion, which is the posterior superior iliac spine;
Step 3: Determine the Shangliao acupoint: The depression between the posterior superior iliac spine and the posterior median line of the sacrum is the Shangliao acupoint.
Step 4: Determine the sacral hiatus: Above the coccyx, between the two sacral horns, is the sacral hiatus;
Step 5: Place the index finger on the Upper Bone Hole (BL-31) acupoint, and the little finger beside the sacral hiatus, and spread the index, middle, ring, and little fingers evenly apart. The tips of these fingers will point to the Upper Bone Hole (BL-31), Second Bone Hole (BL-32), Middle Bone Hole (BL-33), and Lower Bone Hole (BL-34)  acupoints, totaling eight acupoints on both sides.