Differential Diagnosis for Hair Loss at the Front
- Single most likely diagnosis
- Androgenetic alopecia (male/female pattern baldness): This is the most common cause of hair loss, especially at the front of the scalp. It is due to the conversion of testosterone to dihydrotestosterone (DHT), which leads to hair follicle shrinkage.
- Other Likely diagnoses
- Alopecia areata: An autoimmune condition that causes patchy hair loss, often at the front of the scalp. It can be triggered by stress, genetics, or other factors.
- Traction alopecia: Hair loss caused by constant pulling on the hair, such as from tight hairstyles like braids, ponytails, or cornrows.
- Telogen effluvium: A condition that causes excessive hair shedding, often due to stress, hormonal changes, or nutritional deficiencies.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Thyroid disorders (hypothyroidism or hyperthyroidism): Hair loss can be a symptom of thyroid problems, which can have serious consequences if left untreated.
- Autoimmune disorders (e.g., lupus, rheumatoid arthritis): These conditions can cause hair loss, and early diagnosis is crucial to prevent long-term damage.
- Skin cancers (e.g., basal cell carcinoma, squamous cell carcinoma): Although rare, skin cancers can cause hair loss, especially if they develop on the scalp.
- Rare diagnoses
- Trichotillomania: A psychological disorder characterized by compulsive hair pulling, leading to hair loss.
- Lichen planopilaris: A rare inflammatory condition that causes hair loss, often accompanied by itching, redness, and scarring.
- Frontal fibrosing alopecia: A rare condition that causes hair loss and scarring on the front of the scalp, often accompanied by eyebrow loss.