Many factors can contribute to edema of the lower extremities. Leg edema can be caused by a serious medical condition such as coronary artery disease, renal insufficiency for example. Many different factors can contribute to the development of leg edema, here are some examples:
Poly-substance abuse (laxatives, diuretics, other medications); Taking birth control or hormone replacement therapy pills; Pregnancy and PMS;
Varicose veins and history of phlebitis; Neuromuscular disorders; Trauma,
Sodium Retention (to name a few). Be careful because edema of the lower extremities can lead to leg ulcerations and other medical disorders such as: Fluid overload (swelling of hands, arms, eyes.. basically generalized edema); Hypertension and Palpitations; Headaches.

If I were you I would see about seeing a neurologist, rheumatologist, and a nephrologist. I hope this helps. Please don't take "I don't know what the problem is" for an answer. If the doctor you are seeing is a family practice MD consider seeing a internal medicine doctor.

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Iwould say first you need to make sure you are on a low salt diet. I used to do home care and I cannot tell you the number of people who said they were on a low salt diet, but still ate many foods high in salt. Just about everything processed or in a can contains salt. You should read every label. Try elevating your legs when you sit or lay down. The other nurse talked about vascular problems, they do not usually check for vascular problems until they are in the late stages. Early stages include swelling. You could try loosing weight, an exercise program to increase your circulation. If all else fails, remember, water pills now are far better that heart failure later.

I had varicose veins which causes feet swelling and paining.I tried to use venorid serum which good for the treatment of veins . it takes time and patience but works in the long run.

I had a chance to use venorid serum to cure my varicose veins.Its gone now.must try!!!!!!!