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Why Does Kidney Disease Cause Leg Cramps

Provided by Expert Yang Hongtao on : 2014-02-18 14:32

Why Does Kidney Disease Cause Leg CrampsLeg cramps is common among people with kidney disease, but few know why kidney disease cause leg cramps. In the following, you may find the various factors.

The accumulated wastes and toxins

Because kidney fails to filter the blood, wastes and toxins will build up. If they damage the nerve endings, they may stimulate the muscles and cause leg cramps

Low blood calcium

Leg cramps is also related with low blood calcium. When the blood calcium level lowers, it may increase the excitability of leg muscles and lead to cramps.

-For kidney patients, they run a high risk of low blood calcium. One function of the kidneys is to secrete vitamin D, which helps the absorption of calcium. The failed kidneys can not release enough vitamin D, as a result, there is an inadequate calcium absorption.

-Restricted diet may decrease the consumption of calcium.

-Phosphorus and calcium affect each other. Too much phosphorus in the blood will lower the calcium.


The damaged kidney can not regulate acid-base balance in the body. And many acidic materials build up in the body. If they accumulate in the leg muscles, it can lead to leg cramp.

Fast fluid changes

If too much fluid is taken away from body at a fast rate, leg cramps easily occurs. Therefore, leg cramps is a common side effect of dialysis.

Side effects of medicine

Many medicines you take have side effects, such as diuretics, immunosuppressors, hypotensive drugs, and glucocorticoid. And leg cramps is just one of them.

If you suffer from leg cramps, you should talk with your doctor to find the accurate cause and suit the remedy to the case. However, it is only temporary medical relief. The underlying cause of leg cramp results from kidney failure. If you would like to know more information about improving kidney function, please contact our online doctors.


It is quite hard to fight against kidney disease for a long time. Now, a lot of kidney experts here try to give biggest help for kidney patients. If you have some questions about any kind of kidney disease, welcome to contact us by the following ways.

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