There are many factors that can cause aching in the left leg, and most leg pain is a result of general wear and tear or injuries, according to Mayo Clinic. The three main areas of medical reasons for leg pain are muscular, neurological and vascular, explains Medical News Today.
Leg injuries are not just a result of a one-time incident, explains Medical News Today. Several types of leg aches, such as shin splints and stress fractures, often occur after weeks or even months of repetitive motion. These injuries are especially common in runners, and they are included in the category of muscular pain.
Neurological causes of leg pain include restless leg syndrome, neuropathy and trapped nerves, according to Medical News Today. In these cases, leg pain is a result of problems in the nervous system, and seeing a neurologist is the best way to develop an effective treatment plan.
Vascular leg pain issues are related to blood clots, and these causes of leg pain are often the most serious.
If a patient believes that his left leg ache could be a result of a blood clot, prompt medical attention is a necessity, warns Mayo Clinic. Deep vein thrombosis most commonly occurs in the leg, and symptoms of this serious condition include pain in the leg, often originating in the calf, and swelling in one leg. If deep vein thrombosis is not dealt with in a timely manner, it can result in a life-threatening pulmonary embolism.