I'm 19 year old guy

I hv a problem dat whenever I go for urine 

After passing urine,in the last my penis head starts burning & irritation occurs and some drops of semen & sperm comes out from it

I m having this problem from past 10 days.

Plz tell me Is there any serious thing about this for my future & present???

Plz help me out I wl b grateful to u