Today nightfall occurs and red colour semen is comes out and and before it in beginning of march it is also occur at that time it changes to brown colour and then back to greyish colour, it occurs same as in previous years also like 2 times per year and both the time colour automatically changes to greyish colour and I don't have any symptoms like pain or anything like on my penis just only one thing that I erect my penis for a long time and then masturbate and also use almond oil as lubricant and didn't do sex yet.