Non-pattern hair loss 

Non-pattern hair loss can be caused by:

Compulsive pulling of hair:

Pulling hair compulsively, otherwise known as trichotillomania, results in patchy hair loss.

Treatment for this condition involves addressing the relevant emotional or psychological motivations.

Alopecia areata:

This is an autoimmune disorder, leading to different types of hair loss, varying from mild thinning to baldness with patches of remaining hair.

An examination from a medical expert is required to diagnose alopecia areata and outline treatment.

Triangular alopecia:

People affected by this condition will experience hair loss in the temporal zones, and it can start as early as childhood.

Resulting hair loss may apply to the entire scalp, or a small number of fine hairs could stay in place.

While the cause for this has yet to be identified, medical or surgical treatment can address it.

Scarring alopecia:

Scarring alopecia is, as the name suggests, hair loss caused by scars on the scalp (specifically the top).

This tends to affect African-American women, due to the common practice of wearing the hair in tight braids for long periods.

This places severe strain on the follicles over time.

Loose-anagen syndrome:

This condition occurs mainly in people with fair hair.

The hairs on the scalp are loose in the follicles, and can be pulled out easily through pulling or combing.

Symptoms tend to appear during childhood, though the condition can improve with age.

Diet:

A lack of nutrition is perhaps the easiest cause of hair loss to control.

Some foods can help to keep hair strong and healthy, promoting normal growth.

The most hair-healthy diets include lots of B vitamins, while those with too much vitamin A can contribute to hair loss.