It’s normal to lose about 50 to 100 hairs a day. But it can be upsetting when you notice more hair loss than this, bald patches, a widening part, or a ponytail that keeps getting thinner and thinner.

High DHT levels can cause hair follicles to shrink, leading to female pattern hair loss. Low estrogen levels may lead to hair entering the resting phase more often, causing thinning and shedding. High ...