what causes numbness and tingling in my left thigh only?
544330
Where in your thigh?  Do you have muscle weakness too?  More than likely there is some nerve irritation(not a "pinched" nerve).  Either in the lumbar spine or at the inguinal ligament (front of pelvis).  If the numbness and tingling is in a discreet area, not diffuse, and if there is no pain in the thigh, I would not freak out about it.  You need to make an appointment with a chiropractic doctor and have him or her diagnose you.  DON'T START YOUR SEARCH FOR TREATMENT WITH A MEDICAL DOCTOR!!  They will more than likely be unable to find the cause of you problem... but you will leave with drugs.  Drugs that may make the numbness and tingling go away but will not solve your problem that will get worse if left unattended.
1052413
This is a form of neuropathy.  It can be caused by many different things but mostly the onset of a diabetic reaction of some sort.  A good diet, watching your blood sugar levels and getting plenty of exercise to increase circulation should help.  It has for me.
123474
I would advise you to see a doctor soon because blocked leg arteries are dangerous when you are sitting on a plane for several hours because it can cause numbness.
446555
YOU MAY WANT TO SEE A DOCTOR. IF YOUR A DIABETIC IT MAY BE NUROPOTHY. IF NOT THEN IT MAY BE A CIRCULATION ISSUE. EITHER WAY IT IS NOT SOMETHING TO PLAY WITH IF IT IS ON THE LEFT SIDE BECAUSE IT COULD BE RELATED TO THE HEART.
1067244
Check with your doctor, could be low potassium, poor circulation, or trauma to muscles after exercise ,etc.
639813
If you mean "Meralgia paresthetica", then read on...\n\n\nBurning Thigh Pain (Meralgia paresthetica)\n  The nerves in your body bring information to the brain about the environment (sensory nerves) and messages from the brain to activate muscles (motor nerves). To do this, nerves must pass over, under, around and through your joints, bones, and muscles. Usually, there is enough room to permit easy passage. But swelling, trauma, or pressure can narrow these openings and squeeze the nerve. When that happens, pain, paralysis, or other dysfunction may result.\n\nA painful, burning sensation on the outer side of the thigh may mean that one of the large sensory nerves (lateral femoral cutaneous nerve) to your legs is being compressed. This condition is known as meralgia paresthetica (me-ral'-gee-a par-es-thet'-i-ka).\n\nSigns and Symptoms\n\n    * Pain on the outer side of the thigh, occasionally extending to the outer side of the knee\n\n    * A burning sensation, tingling, or numbness in the same area\n\n    * Occasionally, aching in the groin area or pain spreading across the buttocks\n\n    * Usually only on one side of the body\n\n    * Usually more sensitive to light touch than to firm pressure\n\nDiagnosis\n\nDuring a physical examination, your physician will ask about recent surgeries, injury to the hip, or repetitive activities that could irritate the nerve. He or she will also check for any sensory differences between the affected leg and your other leg. To verify the site of the burning pain, the physician will put some pressure on the nerve to reproduce the sensation. You may need both an abdominal and a pelvic examination to exclude any problems in those areas.\n\nX-rays will help identify any bone abnormalities that might be putting pressure on the nerve. If your physician suspects that a growth such as a tumor is the source of the pressure, you may need to get an MRI or CT (computed tomography) scan. In rare cases, a nerve conduction study may be advised.\n\nRestrictive clothing and weight gain are two common reasons for pressure on a nerve. Your physician may ask if you wear a heavy tool belt at work or if you consistently wear a tight corset or girdle. He or she may recommend a weight loss program.\n\nTreatment\n\nTreatments will vary, depending on the source of the pressure. It may take time for the burning pain to stop and, in some cases, numbness will persist despite treatment. The goal is to remove the cause of the compression. This may mean resting from an aggravating activity, losing weight, wearing loose clothing, or using a toolbox instead of wearing a tool belt. In more severe cases, your physician may give you an injection of a corticosteroid preparation to reduce inflammation. This generally relieves the symptoms for some time. In rare cases, surgery is needed to release the nerve.
878572
Go to the doctor.  It could be any number of things and no one here cand diagnosis it.  Sounds like a nerve problem (NOT poor circulation IMHO) that may be associated with diabetis, lupus, or some other serious health condition.  PLEASE go see a doctor!
390827
Nerves supply sensation to an area.  Whenever you lose normal sensation (i.e. numbness or tingling) then something is impeding on a nerve somewhere.  The question is then what and where?  That I can't tell you ... I can only tell you to see a doctor or a good physical therapist (like myself) and they should be able to figure it out after examining you.
889515
it might be a sinus problem, or sinus infection, or ear infection, or swollen lymph nodes caused by another infection,,i suggest you see a dr,  and even consider going to an emergency room, all of those symtoms combined together really dont fit into any one problem that i know of , i would be especially concerned about the numbness and dizziness
603445
It sound like you have something misaligned on your spine.\nYour lower veribra have nerves leading to your leg. Go to the doctor because nerves can be damaged with time.
901247
swelling can cause the nerves to go numb.\ndepends what you mean by a "lot" but it could be normal - like you arm or leg waking up after going to sleep. If in severe pain have it looked at - it might be broken
700013
the big structures there, that can cause disability, are femoral vein, artery and nerve. damage to the nerve can cause loss of power or sensation in the leg. damage to the artery and vein can cause circulation problems, if you have been traumatised in the groin repeatedly and have any symptoms in the same leg, then you do want to see a doctor asap, good luck
916588
The pins and needles thing is a side effect, supposedly it will "magicly" disapear. Pain and constant numbness sounds serious though, could it be diabetes related though? I dont know, go see a doctor. Whats you blood pressure? Remeron lowers it somtimes, might explain weakness. Whoknowes, go see a doctor.
496196
Probably sciatic nerve- don't have sex and see if the condition improves.
937595
There are many things that cause numbness or strange sensations in the body.  I have some of this and have been checked by several doctors, but learned nothing. You can have a loss of circulation or a pinched or hurt nerve.  Have just tried to find something on the web, but no luck. You may want to check with a doctor, but the thing I try to do is get enough exercise and drink at least eight glasses of water every day.
1083381
It sounds like you have poor circulation and that can be a very serious problem due to clogged arteries.  You definitely need to get it check out as soon as possible.  They can do a Doppler examination on the arteries in you leg (kinda like an ultrasound).  Please, go see your doctor.  You don't want to lose a leg.
610302
Have you been tested for Diabetes?  Numbness in your feet is a huge indication. I have recently been diagnosed with it and I have the same problem with my feet.  I know you don't want to hear this (I didn't either), but you really need to cut back on the drinking, QUIT SMOKING, and get some exercise.  I started exercising more and my feet feel alot better.  It's hard to change all bad health babits at once, but at least do these 3 things and you will be surprised at how much better you feel.  Take care!