Was having party with friends in outdoor park. Two friends picked up fight. One of them got severly injured and had severe bleeding. On the park sitting chair(steel chair)few blood drops had fallen and I poured water from bottle to clean it. It was dark and one of the friends had his mobile flash on while I was pouring water to remove blood from the chair. Some droplets splashed back onto my hands and legs. I didn't pay much attention then as I thought it to be water droplets. 

I asked one of my friends and she told me that the boy who sustained injury and was bleeding is frequent visitor to CSWs and he might be having HIV

Welcome to the Forum.  Thanks for your questions.  I’m be glad to inform you that your concerns are groundless.  For starters, you do not know that the person who was bleeding has HIV.  Despite the fact that he may see commercial sex workers, it is statistically very unlikely that he has HIV.  More importantly, HIV is NOT spread through exposure to droplets of blood or water containing blood.  This is the case even if a drop landed on a cut, scrape, or insect bite.  No risk. There is no need for testing and certainly no medical or scientific reason for concern.  EWH---

I am 100℅ sure that the red spots were dried blood because the moment I washed it with soap in the morning it went off and again I am 100℅ sure the dried blood spots were from that boy's blood splash from chair as the dried blood spots were round/circular or of similar shape.

4.I want to ask about one more incident that happened with while using washroom in mall. I clearly remember the water in commode hole looked clean, however after using it and when I stood up to flush I saw some blood in water and some on the commode sink too. I am 100℅ sure it was not mine as I was not on my periods and to be doubly sure I even inserted my finger in vagina and touched my anus(Although I used washroom for urination only) from outside to check if it was my blood but I found none. Hence it must have been a period blood of someone who used it earlier. I had used it for URINATION only. What is the risk of hiv due to backsplash on labia/vagina/anus area. I am virgin and have not had sex till now so my vagina is not that opened up. This incident happened quite sometime back, however the recent blood incident led to me remember that washroom incident causing panic. What is your risk assessment here. 

5.If while using washroom if some blood doplets had splashes back into vagina and then when I inserted my finger to check. My finger might have rubbed the droplets inside or the inner labia or vagina. Is this a risk of hiv. 

This is a repetitive follow up.  Please don’t expect the answers to change.  I stated above that HIV is not transmitted through exposure of skin to blood droplets or water containing blood. I also stated that the presence of a fresh scrape or insect bite in no way changes that fact.thus:---

These are largely repetitive follow-ups reflecting your OCD.  Responses will be brief and then the thread will be closed.  Should you return to the Forum with further questions about these sorts of NO RISK events, your questions may not be answered and your posting fee will not be returned.  The best thing you could do for yourself is to pursue professional help addressing your OCD.---