Hereditary Hair Loss
Alopecia Androgenetica is the medical term used to refer to hereditary hair loss. Inherited hypersensitivity of the hair follicles to androgens, particularly to DHT (dihydrotestosterone), causes the hair follicles to degenerate progressively.
This affects both men and women, with the main difference being in the way it progresses. The more advanced the degeneration of the hair follicles is, the more severe the hair loss will be. Bald spots should be treated as early as possible. Hair growth can often be reactivated within 3 years after hair falls out. One should also aim to preserve and strengthen existing hair structures in order to prevent future thinning hair.
Diffuse Hair Loss
Alopecia Diffusa refers to severe hair loss on the entire head. It may affect hair growth over the entire body, but is usually restricted to the scalp.
There are different reasons known for the premature transgression from the growth phase (anagen phase) to the hair loss phase (telogen phase). These include high febrile infections, protein, iron, or vitamin deficiencies, hormonal imbalances in women (pregnancy/birth, menopause), liver diseases, and severe operations. Stress, a hectic and high workload, and psychological pressure are also some of the increasingly common causes. Naturally, diffuse hair loss often disappears once the cause is eliminated — but the cause is often unknown and the hair loss therefore persists for many years.
Circular Hair Loss
Circular hair loss, also called Alopecia areata is characterized by distinct, progressive bald spots that can spread over the entire head.
There are progression forms that can result in total hair loss on the head (Alopecia totalis), up to total hair loss on the entire body (Alopecia universalis). The exact causes are still unclear but there is a general assumption that Alopecia areata results from an auto-immune reaction. In this case, there are inflammatory cells at the lower end of the hair follicles that suppress hair growth. Since the hair follicles remain intact, there are always spontaneous remissions, but the baldness persists in the rest of the cases.
Hair Loss through Chemotherapy
Hair loss through chemotherapy, also called Alopecia Medicamentosa. The cytostatic drugs administered during chemotherapy result in the loss of head hair (mostly reversible)
The progression in this case largely depends on the substances used, the dosage, and treatment duration. Cytostatic drugs are a group of drugs used to inhibit cell growth, but with a side effect that affects the activity of hair follicles. Normally, the hair grows back approximately 3 months after completion of the chemotherapy, but there have increasingly been cases of persistent hair growth disorder.
Unfortunately, the topic of hair loss is still often neglected in the context of chemotherapy treatment. The common argument is that hair loss has no life-threatening effects. The psychological effect is completely underestimated. This can adversely affect the immune system in addition to the medication.