Hair loss upto 100/day is normal.
Loss of around more than 100/day is abnormal.
There are multiple causes.
Telogen effluvium(temporary loss of hair after a stressful event like surgery, pregnancy, accident, COVID infection etc.,)
Alopecia areata causing diffuse hair loss(mostly seen in patients having allergy)
Anemia, Hormonal changes like
thyroid and others cause hair loss.
Diagnosis can be done by knowing the pattern of hair loss, associated symptoms and problems.
Next Steps
consult me online/any Dermatologist for proper prescription.
Health Tips
Apply shampoo to the scalp(not just hair) while taking bath, wash after 3-5 minutes with water.
Dry hair in sunlight after taking bath.
Do Not rub your hair while washing or drying hair.
Do not apply any oil after taking bath.