Origin
Pubis, obturator fascia.
Insertion
Coccyx, sacrum.
Blood supply
Internal pudendal artery, internal iliac artery.
Nerve supply
Sacral nerves.
Action
It helps to control the flow of urine. It undergoes contraction during orgasm. It also helps during childbirth. It stabilizes all the pelvic organs.
Disease/Injury
Premature ejaculation of semen in men can occur if these muscles do not work properly. Also urinary incontinence, frequent urination, and fecal incontinence is observed in both males and females.
Muscle Exercise
To strengthen the pubococcygeus muscle, you can practice controlled kegel exercise. Contract and release it as slowly as you can. Count slowly up to 5 and gradually change from a fully relaxed stage to fully contracted stage, then hold it for 2 seconds and go back to fully relaxed stage by counting 5 again. Repeat this 10 times.
Interesting facts
Before doing the exercise, it is necessary to identify the muscle. The easiest way is to stop the urination in middle of it and start again, do this several times until you feel the muscle.