Leg Problems, Noninjury
Minor leg problems, such as sore muscles, are common. Leg problems commonly occur during sports or recreational activities, work-related tasks, and work or projects around the home. Leg problems also can be caused by injuries. If you think your leg problem is related to an injury, see the topic Leg Injuries.
Leg problems may be minor or serious and may include symptoms such as pain, swelling, cramps, numbness, tingling, weakness, or changes in temperature or color. Symptoms often develop from exercise, everyday wear and tear, or overuse.
Older adults have a higher risk for leg problems because they lose muscle mass as they age. Children may have leg problems for the same reasons as adults or for reasons specific to children. Problems are often caused by overactivity or the rapid growth of bone and muscle that occurs in children.
It may be helpful to know the structure of the leg to better understand leg problems. See pictures of:
Leg problems that are not related to a specific injury have many causes.
Some leg problems are seen only in children, such as swelling at the top of the shinbone (Osgood-Schlatter disease) and swelling and pain in the knee joint (juvenile idiopathic arthritis). Growing pains are common among rapidly growing children and teens and are probably caused by differences in growth rates of muscle, bone, and soft tissue. These pains often last for 1 or 2 hours at a time and can wake a child from sleep.
Swollen feet are common after you have been sitting or standing for long periods of time or during hot or humid weather. Sitting or lying down and elevating your legs will often relieve this type of swelling. Conditions that put increased pressure on the belly and pelvis, such as obesity and pregnancy, also can cause swelling in the feet and ankles and varicose veins.
Many medicines can cause problems in the legs. For example, birth control pills and other hormones can increase your risk of blood clots, while water pills (diuretics), heart medicines, and cholesterol-lowering medicines (statins) can cause muscle cramps.
Some leg problems are only present at night:
Most minor leg problems will heal on their own, and home treatment may be all that is needed to relieve symptoms and promote healing. But serious leg problems also may occur and require prompt evaluation by a doctor.
Check your symptoms to decide if and when you should see a doctor.
eMedicineHealth Medical Reference from Healthwise
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