Some pregnant people develop hand tingling or numbness, particularly later in pregnancy.

Fluid retention can increase pressure within the carpal tunnel.

As a result, symptoms resembling carpal tunnel syndrome may develop or become worse.

A pregnant person may notice:

• Tingling in the thumb and fingers

• Numbness at night

• Hand discomfort

• Swelling

• Difficulty gripping objects

These symptoms may improve after pregnancy.

However, severe swelling, particularly if accompanied by headache, vision changes, high blood pressure, or other concerning symptoms, requires prompt medical evaluation.

14. Thyroid Problems Can Sometimes Be Associated With Nerve Symptoms

Thyroid disorders can affect many systems in the body.

In particular, hypothyroidism has been associated with an increased risk of carpal tunnel syndrome.

This doesn't mean that numb hands automatically indicate a thyroid problem.

But if numbness occurs along with other symptoms such as:

• Persistent fatigue

• Feeling unusually cold

• Unexplained weight changes

• Dry skin

• Constipation

• Hair changes

• Muscle weakness

a healthcare professional may consider thyroid testing depending on the overall clinical picture.

15. Autoimmune and Other Neurological Conditions Can Cause Numbness

There are many less common causes of persistent hand numbness.

Certain autoimmune diseases, neurological disorders, infections, and inflammatory conditions can affect nerves.

The pattern varies significantly.

Some conditions cause numbness on one side.

Others affect both hands and feet.

Some produce weakness, coordination problems, balance difficulties, or changes in reflexes.

This is one reason persistent numbness shouldn't be self-diagnosed based on an online symptom list.

The same sensation can have many different causes.

16. A Herniated Disc Can Cause Arm and Hand Symptoms

Discs between the vertebrae in the neck act as cushions.

Sometimes a disc can bulge or herniate and irritate a nearby nerve.