Yes, they can — for most people with mild to moderate stress incontinence

The evidence here is strong and consistent. Large systematic reviews of pelvic floor training research repeatedly show measurable reductions in stress incontinence episodes for people who train consistently and correctly. Both the European Association of Urology and the American College of Physicians list pelvic floor muscle training as a first-line treatment for mild to moderate cases.

What "mild to moderate" means in practice

This refers to occasional leakage with specific triggers — coughing, sneezing, laughing, exercise, or lifting. If you are experiencing more substantial or constant leakage, or if leakage is significantly affecting your daily life, that is worth discussing with a healthcare provider.

What the training actually does

A well-trained pelvic floor contracts quickly and reflexively when the intra-abdominal pressure spikes (as during a cough). This reflex closes the urethra at the right moment and prevents leakage. Weak or poorly coordinated pelvic floor muscles do not contract fast enough or strongly enough, so leakage occurs.

Training addresses this directly: you are retraining both the strength and the reflexive timing of that response.

How long before results show?

Most people notice some improvement within 4-6 weeks of consistent, correct practice. Measurable changes often take 3-6 months. If you have been practicing correctly for 3 months with no improvement, it is worth seeking professional input.

Can they make it worse?

Done correctly, pelvic floor exercises do not make leakage worse. However, overexercise or progressing too quickly can cause pelvic floor overactivity, which has its own set of symptoms (urgency, frequency, pain). This is uncommon and usually avoidable by following a well-structured program and prioritizing quality over quantity.

For pregnancy-related or postpartum leakage

This is one of the most common and well-studied uses of pelvic floor training. Research consistently shows that appropriate training during and after pregnancy reduces leakage. The key word is appropriate — especially in the postpartum period, starting at the right time matters.