<s>[INST] I am experiencing unexplained bruising on my arms and legs. I find one to two new bruises each day. I also started having leg cramps at night. This summer my hemoglobin count was low, but after further blood work, all seemed fine. I am also extremely tired. Any answers? [/INST] Hello,Frequent bruising can be there due to following reasons-- Deficiency of vitamins like Vitamin C.- Deficiency of blood clotting factors.- Kidney or liver problems.- Allergic conditions.- Raised blood IgE levels- Taking of some medicines like prednisolone, aspirin or which interferes with blood clotting. I shall advice you to consult to your doctor and have at least routine blood examination. Meanwhile, check for any medicines which you are taking for their interference with blood clotting. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Mukesh Tiwari, Orthopedic Surgeon </s>