Acne
Acne is one of the most common skin conditions — and one of the most treatable. Here's a clear overview of what causes it, when to seek care, and how it's assessed at iCollab.
Very common — affects teens and adults alike
Most acne responds well to the right approach
Early care helps prevent scarring
Dermatology on the iCollab team by referral
Acne is the most common skin condition people experience, affecting teenagers and adults alike. While it's rarely dangerous, it can affect comfort and confidence — and most acne responds well to the right approach, so there's no need to simply wait it out.
What causes acne?
Acne develops when hair follicles become blocked by oil (sebum) and dead skin cells. Bacteria, hormones, and inflammation all play a role. Common contributing factors include hormonal changes (puberty, menstrual cycles, and other shifts), genetics, certain products that block pores, and some medications. Diet and stress can influence acne for some people, though they're rarely the sole cause.
Related readingSkin cancer screening & mole checksKnow the ABCDE signs and when to get a spot checked.Common types
Acne can appear as blackheads and whiteheads (blocked pores), papules and pustules (the red or pus-filled spots most people picture), and deeper nodules or cysts, which are firmer, sometimes painful, and more likely to leave marks. Knowing the type helps guide the most suitable approach.
When to see a doctor
It's worth seeking care if acne is persistent, painful, leaving scars or marks, or affecting how you feel day to day. Early assessment can help prevent scarring and find an approach that works for your skin. Your iCollab family doctor or a walk-in physician can assess your skin and, where appropriate, coordinate a dermatology referral within the clinic.
How it's assessed at iCollab
Assessment starts with understanding your skin, history, and what you've already tried. Because dermatology is on the iCollab team, if specialist input is helpful, the referral path is short and your records stay connected. Any plan is discussed with you and tailored to your situation.
Have a concern you'd like looked at?
Book with an iCollab physician, or ask at the walk-in clinic.
A closer look
As you scroll, each part highlights on the diagram. This is general education, not a diagnosis.
Skin surface
The outer layer (epidermis) is your protective barrier. In acne, dead cells and oil can block the surface of pores here.
Pores
Each pore connects to a follicle. When the opening becomes blocked, the trapped mix of oil and cells is what starts a breakout.
Oil glands
Sebaceous glands produce oil (sebum). Hormones can increase oil production, which is why breakouts often flare at certain times.
Follicle
Inside a blocked follicle, normal skin bacteria can multiply, leading to the inflammation that turns a blocked pore into a pimple.
Inflammation
Redness and swelling are the immune response to that process. Calming inflammation is a key part of clearing and preventing marks.
Acne — FAQ
Can adults get acne?+
Will acne leave scars?+
Do I need a referral to see dermatology for acne?+
How do I book?+
More in Dermatology
Educational guides and related care from the iCollab dermatology team.