Why is my skin breaking out?
Not a diagnosis: a head start. These are the three drivers most worth checking first, based on what the evidence says gets missed most often.
Hormonal signatures
Jawline flares tracking your cycle point hormonal; PCOS hides here.
Dairy and high-GI evidence
The two dietary links with real evidence. Two strict weeks tells you more than two years of guessing.
Gut-skin axis
Gut inflammation shows up on skin. Treat the inside, watch the outside.
Androgens + SHBG if cycle irregular; HbA1c
1. Start a two-minute note so the pattern becomes visible.
2. Take the test list above with you so you can explain the pattern clearly.
3. Read the evidence: Acne Root Causes: What Your Skin Is Actually Telling You.
Education, not diagnosis, and never a replacement for your GP or pharmacist. Reference ranges and guidance vary; sudden, severe or worsening symptoms need 111, or 999 in an emergency. By Hussain Sharifi · independent, affiliate-free health research.