Tell the teacher about the situation afterward and she will understand.
As for the students who were there at the time, I guess they will have a hard time forgetting about it. The friendly ones will comfort you and stand by your side, the neutral ones will remember the incident silently and won't embarrass you in front of you, but they may mention it to other friends. Those who are not friendly may laugh at you.
If you can look away and make light of it, you can joke about it with a bit of self-deprecation, but that's too much for a girl.
The best thing to do is, quit the group. Take a different dance class, a new environment to avoid unnecessary embarrassment and to focus on your studies.
In the future, we should pay attention to avoid the same thing happen again, encounter difficulties to find the teacher, if it is a male teacher is inconvenient, let the teacher appointed a female student to help you, in the future, do not hold urine, have urine in time to go to the toilet.
There is a more serious harm in holding back urine: long-term holding back urine will make the urine in the bladder and/or bacteria in the urine retrograde to the renal pelvis, causing reflux nephropathy and/or pyelonephritis, which will lead to the damage of the renal parenchyma in the long run and the occurrence of renal failure, which is especially seen in the case of children.
Long time holding urine is not good for health will lead to urinary tract diseases, people have had the experience of holding urine, some because of personal hobbies can not let go, some in order to play cards or chess refused to leave the "battlefield", but there is a "urination" and can not be timely! Urination is very unfavorable to health. As the saying goes, "water does not rot", normal urination can not only discharge the body's metabolites, but also on the urinary system has a self-purification effect.
When the bladder is distended, the blood vessels of the bladder wall are compressed, the bladder mucosa ischemia, the resistance is reduced, the bacteria will take advantage of the situation, the growth and reproduction, not only easy to cause cystitis, urethritis and other diseases of the urinary system, the seriousness of the situation will also affect the function of the kidneys.
Reference: Baidu Encyclopedia - Holding back urine