What are the alopecia causes in men?

Have you noticed more hair in your shower drain or on your pillow lately? Maybe your hairline is moving back, or you're seeing thinner spots on the top of your head. If so, you may be experiencing alopecia.

Alopecia is a medical term for hair loss. It affects millions of men across the United States, including many here in San Jose, California. While hair loss can feel stressful, understanding the cause is the first step toward finding the right treatment.

Let's look at some of the most common alopecia causes in men.

What Is Alopecia?

Alopecia is a condition that causes hair to fall out. It can happen slowly over time or appear suddenly. Some men lose hair only on their scalp, while others may lose hair on their beard, eyebrows, or other parts of the body.

There are several types of alopecia, and each has different causes.

Cause #1: Genetics

The most common cause of alopecia in men is hereditary hair loss, also called male pattern baldness.

This type of hair loss is passed down through family genes. It often starts with:

• A receding hairline

• Thinning at the crown

• Gradual hair loss over time

Many men begin noticing signs in their 20s or 30s, but it can happen at any age.

Cause #2: Hormonal Changes

Hormones play a major role in hair growth.

A hormone called DHT (dihydrotestosterone) can shrink hair follicles in men who are genetically sensitive to it. Over time, the follicles produce thinner and weaker hair until growth stops completely.

This is one of the leading causes of male pattern baldness.

Cause #3: Stress

Your body and hair are closely connected. When you experience major stress, your hair growth cycle can be disrupted.

Common stress triggers include:

• Job loss

• Divorce

• Illness

• Surgery

• Financial concerns

Stress-related hair loss may appear several months after the stressful event occurs.

Cause #4: Autoimmune Conditions

Some men develop a condition called alopecia areata.

This happens when the immune system mistakenly attacks healthy hair follicles.

Signs may include:

• Round bald patches on the scalp

• Hair loss in the beard area

• Sudden shedding

The condition can affect men of all ages.

Cause #5: Poor Nutrition

Your hair needs vitamins, minerals, and protein to grow.

Low levels of certain nutrients may contribute to hair thinning, including:

• Iron

• Vitamin D

• Zinc

• Protein

• Biotin

A balanced diet can help support healthier hair growth.

Cause #6: Medical Conditions

Several health conditions can lead to alopecia.

These may include:

• Thyroid disorders

• Diabetes

• Scalp infections

• Chronic illnesses

Because hair loss can sometimes signal an underlying health issue, it is important to have it evaluated by a professional.

Cause #7: Medications

Certain medications can trigger hair loss as a side effect.

Examples include some medications used for:

• High blood pressure

• Depression

• Cancer treatment

• Arthritis

If you notice hair loss after starting a new medication, speak with your healthcare provider.

Why a Professional Evaluation Matters

Many men assume all hair loss is the same, but that is not true.

Different causes require different treatments. A professional scalp and hair evaluation can help identify:

• The type of alopecia

• The condition of your scalp

• Potential medical causes

• The best treatment options

Getting answers early can often improve treatment outcomes.

Can Alopecia Be Treated?

In many cases, yes.

Treatment options may include:

• Hair restoration therapy

• Scalp treatments

• PRP therapy

• Hair transplant procedures

• Nutritional support

• Customized treatment plans

The best solution depends on the cause of your hair loss.

Take Action Before Hair Loss Progresses

Hair loss does not have to define your future. The sooner you identify the cause of alopecia, the sooner you can explore treatment options that may help preserve and restore your hair.

At New Look Institute, we are experts in hair restoration, alopecia diagnosis, and advanced trichology. We help men throughout San Jose and the Bay Area understand the root cause of their hair loss and create personalized treatment plans designed for long-term success. Contact us today to schedule a complimentary consultation and learn how we can help you regain healthier, fuller-looking hair.