Hair Loss

The most common cause of hair loss in men is male pattern baldness, which is driven by a combination of genetics and a hormone called dihydrotestosterone (DHT). DHT is produced from testosterone by an enzyme called 5-alpha reductase. In genetically predisposed men, DHT causes hair follicles on the scalp to gradually shrink in a process known as follicular miniaturisation. Over time, the affected follicles produce thinner, shorter and lighter hairs until they eventually stop producing visible hair altogether. Other causes of hair loss include thyroid disorders, iron deficiency, autoimmune conditions such as alopecia areata, significant physical or emotional stress, and certain medications.

There are several types of hair loss, each with different causes and characteristics. Androgenetic alopecia (male pattern baldness) is by far the most common in men and is caused by genetics and hormones. Alopecia areata is an autoimmune condition that causes patchy hair loss, sometimes affecting the entire scalp or body. Telogen effluvium is a temporary form of hair loss triggered by stress, illness, surgery or significant hormonal changes. The hair typically regrows once the underlying cause resolves. Traction alopecia results from repeated pulling or tension on the hair. Scarring alopecia is caused by inflammation that destroys hair follicles permanently. If you are unsure what type of hair loss you are experiencing, a consultation can help determine the cause and the most appropriate treatment.

 Hair loss treatments require patience and consistency. Finasteride typically takes three to six months of daily use before visible results become apparent, with maximum benefit usually seen at 12 months. Some men notice a reduction in hair shedding within the first few months. Minoxidil follows a similar timeline, with most users seeing improvement between three and six months. It is important to continue treatment consistently. If you stop taking finasteride, DHT levels return to normal and hair loss will resume, typically within six to 12 months. Treatment works best when started early, before significant hair has been lost.

Finasteride is well tolerated by most men, but a small number may experience side effects, including reduced libido, erectile difficulties or breast tenderness. These effects are uncommon and typically resolve after stopping the medication. The MHRA has also issued advice that finasteride may be associated with changes in mood, including low mood, depression and, in rare cases, suicidal thoughts. If you notice any changes to your mental health while taking finasteride, stop the medication and speak to your prescriber straight away. Minoxidil can occasionally cause scalp irritation, dryness or unwanted facial hair growth if it comes into contact with the face. Some men experience a temporary increase in hair shedding during the first few weeks of treatment; this is a normal response as weaker hairs are shed to make way for stronger new growth. A prescriber will discuss all potential side effects with you during your consultation.

Yes. Male pattern baldness is primarily a hereditary condition. If your father, grandfather or other close male relatives experienced hair thinning or baldness, you are more likely to develop the same pattern. The condition is linked to the sensitivity of your hair follicles to DHT, which is determined by your genes. Hair loss can be inherited from either your mother's or father's side of the family. While you cannot change your genetic predisposition, treatments like finasteride can effectively counteract the hormonal process that causes hereditary hair loss to progress.