Praise be to Allah.
If you pass urine or drops of urine, this does not mean that you have to do ghusl; what you have to do is make wudu and wash only the parts of the body and clothing (on which the urine has fallen).
If the situation you describe, the occasional emission of a few drops of urine, is beyond your control, then your case is like that of one who is incontinent , so do the following:
- Wash the private parts with water.
- Wash the part of your clothes that the urine has gotten onto (there is no need to change your clothes).
- Put a pad or a piece of cotton, or something similar, over the private parts so that the urine will not spread.
- Do wudu for each prayer , then pray as you are, and pray as much as you like, fard and nafl, with this wudu. After doing this, anything else that comes out does not matter. Allah says (interpretation of the meaning): “So keep your duty to Allah and fear Him as much as you can…” [al-Taghabun 64:16]. Do not miss any prayers or delay doing them on time, and your prayer will be valid.
This is what should be done in the case of incontinence , but if the urine comes out shortly after urinating, then it stops, in this case you can go to the bathroom fifteen minutes before the prayer or the adhan (for example), then put something (a cloth, etc.) to prevent contamination after you do istinja (cleaning yourself after relieving yourself), do wudu and pray.
For more, please see this category: Nullifiers of Wudu.
And Allah knows best.