Frequently asked questions
Plain-language answers to the questions that come up most about restless legs syndrome. Nothing here is medical advice — decisions about iron, medication, and treatment belong with your doctor.
What is restless legs syndrome?
Restless legs syndrome (RLS) is a neurological condition that causes an uncomfortable urge to move the legs, usually in the evening or at night and when sitting or lying still. Moving relieves it briefly. It is common and treatable, and it is not "all in your head."
What causes restless legs?
The exact cause is not fully understood, but low iron in the brain and the brain's dopamine system are both closely involved. RLS often runs in families, and it can also be linked to other conditions such as pregnancy, kidney disease, and iron deficiency.
Can restless legs be cured?
There is no cure, but for most people the symptoms can be managed well. Correcting low iron, avoiding triggers, and the right medication when needed can make a large difference. Be cautious of anything sold as a guaranteed cure.
Why do my restless legs get worse at night?
RLS follows a daily rhythm and is typically worst in the evening and at night. Being still makes it worse, which is why it tends to strike just as you try to rest or sleep.
What is augmentation?
Augmentation is when restless legs get worse over time because of the medication used to treat them, rather than despite it. It is most associated with the dopamine agonists (pramipexole, ropinirole, and the rotigotine patch): symptoms start earlier in the day, spread to new parts of the body, and become more intense.
Why did my RLS medication stop working, or make things worse?
If you are on a dopamine agonist and your symptoms are creeping earlier in the day or getting more intense, that may be augmentation rather than the disease progressing. In 2024 treatment guidelines moved away from these drugs as a first choice for this reason. It is worth discussing with your doctor.
What should my ferritin level be for restless legs?
Iron testing matters a great deal in RLS. Current guidance discusses aiming for a ferritin above 100 ng/mL and a transferrin saturation above 20%, which is higher than the lab's usual "normal" floor. Ask your doctor to check both, and what targets they aim for.
What medications can make restless legs worse?
Several common medications can aggravate RLS, including sedating (drowsy) antihistamines, many antidepressants, and some anti-nausea and antipsychotic drugs that block dopamine. Never stop a prescribed medication on your own; ask your doctor whether anything on your list could be contributing.
Do caffeine and alcohol affect restless legs?
For many people, yes. Caffeine later in the day and alcohol in the evening are common aggravators. They do not affect everyone, but they are easy things to test by cutting back and seeing whether your nights improve.
Is restless legs genetic?
It often runs in families, and many people with RLS have a parent or sibling who also has it, especially when symptoms start earlier in life. A family history does not guarantee you will develop it, but it is common.
Can pregnancy cause restless legs?
RLS frequently appears or worsens during pregnancy, often connected to iron, and it usually eases after delivery. Because treatment options are more limited in pregnancy, this is very much a conversation for your OB or midwife.
What kind of doctor treats restless legs?
RLS sits between sleep medicine and neurology. A board-certified sleep physician or a neurologist with a movement or sleep focus is a good place to start, ideally one familiar with the current (2024) treatment guideline.
Want more depth? See the guides, or ask the community in the forum.