What happens when left hand palm itching ?

Itching in the left hand palm can have various causes, ranging from common skin conditions like eczema and dry skin to more serious underlying medical issues. It can also be a symptom of allergic reactions or nerve disorders. In some cultural beliefs, an itchy left palm is seen as a sign of good luck or incoming money. 

Here's a more detailed look at potential causes:

Common Causes:

Dry Skin:
Lack of moisture can make skin feel itchy and irritated, especially in the palms. 
Eczema (Hand Eczema):
This inflammatory skin condition causes dry, itchy, and cracked skin, often on the palms and fingers. 
Allergic Reactions:
Contact with allergens like certain chemicals, soaps, or metals can trigger an itchy rash on the palms. 
Psoriasis:
This autoimmune condition causes skin cells to grow too quickly, leading to thick, itchy patches, including on the palms. 
Diabetes:
High blood sugar can cause dry, itchy skin, including on the hands and feet. 

Less Common Causes:

Nerve Disorders: Conditions like carpal tunnel syndrome can cause tingling and itching in the hands and fingers. 
Medication Reactions: Some medications can cause itchy skin as a side effect. 
Liver or Kidney Disease: In some cases, these conditions can manifest with itchy skin. 

When to Seek Medical Advice:

Persistent Itching:
If the itching is severe, doesn't go away, or is accompanied by other symptoms like blistering or redness, it's best to consult a doctor. 
Underlying Health Issues:
If you suspect a medical condition might be the cause of your itchy palm, it's important to get a diagnosis and treatment. 

Important Note: It's crucial to distinguish between the scientific causes of itchy palms and cultural or spiritual beliefs. While some cultures associate itchy palms with luck or fortune, it's more important to address the underlying cause of the itching if it's causing discomfort or concern.