Numbness in Limbs: When to Seek Medical Attention

Numbness in the limbs?

Hello, I have been sitting for long periods while using the computer, and four days ago, when I sat at a 90-degree angle, I started to feel numbness in the upper left part of my back.
However, when I stand up or lie back in a chair at about a 20-degree angle, the numbness disappears.
The numbness only occurs when I am sitting at a 90-degree angle, and its intensity ranges from 1 to 10, with a level of 7.

Three days ago, I began to experience numbness in my right pinky finger extending to the wrist, with the pinky feeling like the source of the numbness, which then spreads to the wrist.
The intensity of the numbness in the pinky is about 3, while the numbness in the hand and wrist is at a level of 2.
Regardless of whether I am standing, lying down, or keeping my arms straight down, I still feel numbness.
The condition in my left hand is similar but less intense, rated at 1.
It's hard to describe, but it is not greater than the right hand.
My right foot also experiences numbness, with the intensity in that area rated at 3, extending to the calf but not reaching the thigh.
It feels similar to the pinky, with the source of the numbness in the foot and then spreading to the calf (which is rated at 2).
I am very concerned about what this could indicate, especially since I hardly exercise.
Should I seek medical attention for these symptoms as soon as possible, or can I try to improve them through exercise first? If exercise is advisable, what kind of exercises should I do to help improve my condition?

Niming, 10~19 year old female. Ask Date: 2021/05/07

Dr. Jiang Junyi reply Neurology

Hello, based on your description—your right foot is experiencing numbness.
The sensation of numbness in your right foot extends from the foot to the calf, but does not reach the thigh.
It feels like the source is in the little toe and spreads to the calf.
This level of numbness may suggest the possibility of lumbar disc herniation compressing the nerves, which could also be caused by sudden injuries, such as twisting the waist, bending to lift heavy objects, or experiencing sudden excessive force, for example, falling from a ladder or landing heavily on the spine.
If there is a herniated disc, it may cause localized inflammatory responses leading to back pain and nerve root compression, resulting in numbness and pain radiating to one side of the lower limb.

Additionally, three days ago, I started experiencing numbness in my right little finger extending to the wrist, with the sensation in the little finger acting as the source and then spreading to the wrist.
This may indicate ulnar nerve compression.
I recommend that you visit a neurology clinic for examination and follow-up.
Wishing you good health and peace.
Dr.
Jiang Junyi, Taoyuan Medical Center, cares about you.

Reply Date: 2021/05/07

More Info

Numbness in the limbs, especially when it occurs in a specific posture, can be indicative of various underlying conditions. Given your description of experiencing numbness primarily when sitting at a 90-degree angle, and the subsequent spread of numbness from your right pinky to your wrist, as well as similar sensations in your left hand and right foot, it is essential to consider several factors before determining the appropriate course of action.

Understanding Numbness
Numbness, or paresthesia, can result from a variety of causes, including nerve compression, poor circulation, or neurological conditions. In your case, the fact that the numbness intensifies when sitting in a specific position suggests that it may be related to nerve compression or irritation, possibly due to prolonged pressure on certain nerves or blood vessels.

1. Nerve Compression: Sitting for extended periods, especially in a position that puts pressure on the back or arms, can lead to compression of the nerves. For instance, the ulnar nerve, which runs along the inner side of the arm and into the hand, can be compressed when the elbow is bent for long periods, leading to numbness in the pinky and ring fingers.

2. Cervical Radiculopathy: If the numbness is associated with neck pain or discomfort, it could indicate a cervical radiculopathy, where a nerve root in the neck is compressed or irritated, leading to symptoms in the arms.

3. Peripheral Neuropathy: Conditions such as diabetes, vitamin deficiencies, or alcohol use can lead to peripheral neuropathy, which may cause numbness in the hands and feet.

4. Circulatory Issues: Poor circulation can also lead to numbness, particularly if you are sitting in a way that restricts blood flow to your limbs.

When to Seek Medical Attention
Given the duration and nature of your symptoms, it is advisable to seek medical attention, especially since the numbness has spread and is affecting multiple limbs. Here are some specific indicators that suggest you should see a healthcare provider:
- Persistent Symptoms: If the numbness persists for more than a few days or worsens, it is essential to consult a physician.

- Accompanying Symptoms: If you experience additional symptoms such as weakness, pain, or changes in coordination, these could indicate a more serious condition that requires immediate evaluation.

- Impact on Daily Activities: If the numbness interferes with your daily activities or quality of life, it is important to seek help.

Initial Steps and Management
While waiting for a medical appointment, there are some initial steps you can take to manage your symptoms:
1. Posture Adjustment: Pay attention to your sitting posture. Ensure that your chair supports your back and that your arms are not resting in a way that could compress nerves.

2. Frequent Breaks: Take regular breaks to stand up, stretch, and move around. This can help alleviate pressure on nerves and improve circulation.

3. Gentle Stretching and Strengthening Exercises: Engaging in gentle stretching and strengthening exercises for your neck, shoulders, and arms may help relieve some of the pressure on the nerves. Focus on exercises that promote flexibility and strength without causing pain.

4. Ergonomic Adjustments: Consider adjusting your workstation to be more ergonomic. This includes ensuring your computer screen is at eye level and your chair supports your lower back.

5. Hydration and Nutrition: Ensure you are well-hydrated and consuming a balanced diet rich in vitamins and minerals, particularly B vitamins, which are essential for nerve health.

Conclusion
In summary, while some numbness may resolve with changes in posture and activity, the persistence and spread of your symptoms warrant a medical evaluation. A healthcare professional can perform a thorough assessment, including a physical examination and possibly imaging or nerve conduction studies, to determine the underlying cause of your symptoms and recommend appropriate treatment. Early intervention can help prevent potential complications and improve your overall quality of life.

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