“Can not stretching before I ran have caused my hip to hurt?”

Yes

Not just the one time. You need an eval for underlying problems.

Hi! Thank you for reaching out. Yes, that could be the cause of your hip pain, especially if you routinely stretch prior to running and have never had this pain before. However, there are many other details involved in this type of question. A consistent/routine warm-up is important for all exercise to prepare the muscles for a larger than normal amount of exertion. However, it is also possible that at some point during the run there was a muscle strain in your hip or tendon that is now causing the pain. Current research points to using dynamic stretches such as high knees, lunging, butt kicks, etc. to warm-up; and then using static stretches such as seated or standing hamstring or quad stretch or a calf stretch against a wall or inclined surface to cool-down after exercise. However, I would recommend gentle stretching over the next couple of days along with icing the painful area, and do not resume your running routine until the pain resolves. I would caution you against assuming that not stretching correlates with the hip pain. If your hip pain persists, I would recommend seeing your doctor for a full evaluation and diagnosis.