Hi Hair growth and shedding is a constant cycle that take place in humans.Hair loss only noticed when rate at which it is lost exceeds the rate at which new ones grow to replace.The cause may in most cases be unknown but some common causes include: Family history(genetic), hormonal changes, scalp infection/skin disorders, hair pulling disorder, medications, excessive hair styling or hair styles that pull your hair tight. Depending on the cause, effective treatment for some causes are available. However, treatment options may include: -Medications if cause by a disease or drugs like Rogaine and Propecia for pattern baldness -Surgery You may see a Dermatologist for better investigation and management if the hairloss is too severe and if no improvement. The following may also help you to prevent preventable type of hairfall -Balanced diet -Avoid tight hair styles -Treat your hair gently while washing and brushing -Avoid harsh treatments options Hope my answer will help you Best regards.