Majocchi Granuloma: A Deep Fungal Infection Beneath the Skin

Understanding Majocchi Granuloma

Most fungal skin infections (like ringworm or athlete’s foot) stay on the surface of the skin. Majocchi granuloma is different: the fungus—a type called a dermatophyte—pushes down into hair follicles and reaches the deeper layer of skin called the dermis. Once there, your immune system mounts a strong response, forming what is called a granuloma (gran-yoo-LOW-muh)—a dense ball of immune cells trying to wall off the infection. This creates the firm nodules (lumps) that are the hallmark of this condition.

The condition is named after Italian dermatologist Agostino Majocchi, who first described it. It accounts for less than 1–2% of all dermatophyte (fungal) infections and most often affects young adults, particularly women—possibly because shaving and waxing are more common triggers.

Signs and Symptoms

Majocchi granuloma looks and feels quite different from ordinary ringworm. Typical features include:

• Firm, raised nodules (lumps) or thick plaques on the skin, usually 0.5–2 cm in size.
• Pustules (pus-filled bumps) on or around the nodules, or central drainage of pus.
• Most common on the lower legs (shins, thighs), though any body area can be affected.
• Lesions may be single or multiple, often appearing where shaving or waxing was done.
• Itching is variable—some people have it, others do not.
• Unlike ringworm, there is usually no clear central clearing or classic ring shape.
• The skin around the nodules may be red and inflamed.

Symptoms typically appear 4–8 weeks after a shaving or waxing injury to the area.

Causes and Risk Factors

Majocchi granuloma is caused by dermatophytes—fungi that normally cause surface infections like ringworm. The most common culprit is Trichophyton mentagrophytes, though other dermatophytes can be responsible.

The key question is: why does this fungus go deep in some people? The answer is usually mechanical trauma. When you shave or wax, tiny cuts and abrasions open a path for the fungus to travel into the hair follicle and beyond.

Risk factors include:

• Frequent shaving or waxing: The most common trigger, especially on the legs.
• Weakened immune system: People on steroids, immunosuppressive drugs, or living with HIV are at higher risk and tend to get more severe infections.
• Existing fungal infection: Having a surface fungal infection nearby increases the chance of deeper inoculation.
• Occupational or hobby exposure: Close contact with infected animals or soil.
• Female sex: Women are 2–3 times more likely to develop this condition, likely related to shaving habits.

How It’s Diagnosed

Majocchi granuloma can look like other conditions—bacterial skin infections, cysts, or inflammatory nodules—so testing is important to confirm the diagnosis.

• Skin biopsy: The most reliable diagnostic tool. A small skin sample is examined under the microscope. The pathologist looks for granulomatous inflammation (clusters of immune cells) with fungal organisms inside. A special stain called GMS (Grocott-Gomori methenamine silver) highlights the fungi.
• Fungal culture: A sample from the skin or biopsy is grown in the lab on a special medium to identify the exact fungus species. This can take 2–4 weeks.
• Dermoscopy: A handheld magnifying tool used by dermatologists to examine the skin surface in more detail.
• KOH preparation: Skin scrapings treated with potassium hydroxide and examined under a microscope for fungal threads (hyphae), though this is more useful for surface infections.

Treatment Options

Because the fungus is deep in the skin, topical (surface) antifungal creams cannot penetrate far enough to work on their own. Oral antifungal pills are required.

• Terbinafine 250 mg once daily for 6–8 weeks: The most commonly used treatment. It is highly effective against the fungi that cause Majocchi granuloma.
• Itraconazole 200–400 mg daily for 6–12 weeks: An alternative, particularly useful in certain cases or when terbinafine is not suitable.
• Topical antifungals: Creams like clotrimazole or terbinafine may be used alongside oral treatment but are not sufficient on their own.

Treatment courses are longer than those for ordinary ringworm because the infection is deeper and harder to reach. Your doctor may check your liver function before or during treatment, as oral antifungal medications can occasionally affect the liver.

What to Expect / Recovery

Most people respond well to oral antifungal treatment:

• You may notice improvement within 4–6 weeks, with the nodules becoming softer and less inflamed.
• Full resolution typically takes the entire 6–12 weeks of treatment—do not stop early even if you feel better, as stopping too soon risks relapse.
• Cure rates exceed 85–90% when the full treatment course is completed.
• Relapse is uncommon if you finish the course and avoid re-injury to the area.
• Some residual skin darkening or scarring may remain after the infection clears.

To reduce your chance of recurrence, avoid shaving or waxing areas that were previously infected, and treat any surface fungal infections promptly.

When to See a Dermatologist

You should see a dermatologist if you have:

• Firm, persistent nodules or lumps on the skin, especially on the legs, that do not respond to over-the-counter antifungal creams.
• Pus-draining bumps that appeared weeks after shaving or waxing.
• A known fungal skin infection that is getting worse or spreading despite topical treatment.
• Any skin nodule of uncertain cause, particularly if you are immunocompromised.

A dermatologist can confirm the diagnosis with a biopsy and prescribe the correct oral antifungal therapy.

Frequently Asked Questions

Q: Why won’t an antifungal cream cure Majocchi granuloma?
A: Topical creams only penetrate the outer layers of skin. In Majocchi granuloma, the fungus is lodged deep inside hair follicles and the dermis (inner skin layer), where creams cannot reach in sufficient concentration. Oral antifungal pills travel through your bloodstream and reach the infection from the inside.

Q: Is Majocchi granuloma contagious?
A: Like other fungal skin infections, Majocchi granuloma can spread through direct skin contact or shared items (towels, razors). However, it is less easily transmitted than surface ringworm because the deeper infection is less exposed. Still, avoid sharing personal items and towels during treatment.

Q: How can I prevent this from happening again?
A: The most effective prevention is avoiding mechanical trauma—particularly shaving or waxing—to areas that have had fungal infections. If you do shave, use a clean razor, good technique, and avoid shaving over inflamed or broken skin. Treat surface fungal infections early before they have a chance to go deeper.

Q: How long will treatment take before I see results?
A: Most people notice the nodules beginning to soften and drain less within 4–6 weeks of starting oral antifungal pills. However, the full treatment course of 6–12 weeks is necessary to eliminate the infection completely and prevent it from coming back.