- Medications and Supplements
Certain medications, including allopurinol, warfarin, chemotherapy medication, and supplements such as excessive Vitamin A intake can lead to hair loss. Also, the lack of vitamin D has been linked to hair loss. Hair loss as a result of medication or supplements can be reversible.
- Heredity (Androgenic Alopecia)
Predetermined hair loss through familial inheritance can be divided into two, i.e., male pattern baldness and female pattern baldness. In men, this type of hair loss occurs due to a hair follicle enzyme (5-alpha reductase) metabolizing testosterone. This usually occurs at the middle and frontal hairline of the scalp since the posterior hair follicles do not produce this enzyme. Female pattern baldness is post-menopausal, and it involves overall hair thinning except for the frontal hairline. Inheritance is the most common type of hair loss.
Diseases such as lupus, skin cancer, thyroid disease, alopecia areata, scalp infection, kidney and liver failure, iron deficiency anemia, and syphilis can lead to either temporally or permanent hair loss.
Hormonal imbalance, which typically occurs during pregnancy, puberty, or due to certain conditions (thyroid problems) can lead to hair loss. This usually regrows after the hormones balance.
If you undergo a traumatic even and remain stressed/ traumatized for months, you may experience some hair thinning. This can be prevented or reversed by dealing with stress. It is advisable to seek help whenever you’re traumatized.