How do I cure the problem of frequent urination?

We have to know your age. If your in old age, then I strongly suggest use a diaper and be a bit more planned. Avoid water when out for long hours, so plan like that. But frequent urination is mostly due to lack of bladder control. It can happen due to various reasons like varicocele, excessive masturbation, enlarged testis, due to underlying medical conditions, or a recent surgery etc.

So we have to know your cause. However, if your absolutely fine and have no chronic medical condition which could possibly be a cause for frequent urination then you can try urinating with a stop start motion, do this every time you urinate within a week you will notice that your pelvic muscles are stronger. Preferably squat and urinate, as it will not strain your urinal nerves. You will actually notice the difference when you squat and urinate. You will feel less pressure and more empty after you urinate.

Keep doing this, simple as that. Its easy but its temptingly difficult to hold urine and pass urine with a stop start motion. But its a mental thing. Do it and you will exercise your pelvic muscles and you should be good.