Thinning of hair can occur due to nutrition deficiency, hormonal imbalance, pregnancy, or stress. People suffer from hair loss. Growing back of thinning hair depends upon the cause of hair thinning. It is important to consult with a doctor in case of sudden hair fall.
What Causes Hair Thinning and How to Improve Hair Thickness?
Hair thinning can be genetic, hormonal, nutritional, or lifestyle-related. Hair thickness improves with good nutrition, proper care, natural remedies, and medicines.

Hair Thinning Versus Hair Loss
People often conflate hair thinning and hair loss. But, they are two distinct terms possessing different etiology and risk factors.