6. Autoimmune disorders
No. 6 on our list of serious diseases that cause severe hair loss are autoimmune disorders. There are more than 100 autoimmune disorders that affect different parts of the body. Some of them directly or indirectly affect the hair follicles, resulting in baldness.
A number of autoimmune conditions, like irritable bowel syndrome, lupus erythematosus, and thyroid disorders, can take a toll on your hairline. Hair loss is also among the common symptoms of systemic lupus erythematosus (SLE), with upwards of 50% of patients experiencing it over the course of their illness.
If you’re losing your hair more than usual, it’s important to seek medical help from a qualified professional. They will get to the root cause of the issue and prepare your hair loss treatment plan accordingly.