Blog

Hair transplant and hair health concepts from A to Z. Each article explains one concept: what it is, why it matters and where its limits lie.

• Hair scienceOctober 19, 2026

  What is alopecia areata? Causes, course and treatment approaches

  Alopecia areata is a condition in which the immune system targets the hair follicles and the hair usually falls out in patches. We explain how it develops, its types, its course, the treatment approaches and how it relates to hair transplants.

• Hair scienceOctober 19, 2026

  What is the donor area? Why does hair at the back of the head fall out less?

  In a hair transplant, we mostly take grafts from the back and sides of the head; the hair roots in this area are usually more resistant to hair loss. Even so, this area is a limited resource, and its resistance is not the same in everyone.

• Hair scienceOctober 19, 2026

  When does transplanted hair grow? The stages of growth after a hair transplant

  After a hair transplant, most of the transplanted hairs fall out first; the roots rest for a while, and then new hairs start to grow. We walk you through this process stage by stage, with approximate timings, and explain why the timeline varies from person to person and why the crown takes longer.

Developments in hair loss and hair transplantation. We write each item with its source, saying how much evidence stands behind it and what is not yet known.

• World newsOctober 19, 2026

  FDA warning letters on unapproved exosome and umbilical cord products

  Since December 2024, the US Food and Drug Administration (FDA) has sent warning letters to some companies marketing unapproved exosome and umbilical cord-derived products. We explain what the letters say, what they do not show, and what they mean if you are considering a hair transplant or treatment.

• World newsOctober 19, 2026

  Finasteride and mood: the 2025 warnings from European and US drug regulators

  In May 2025, the safety committee of the European Medicines Agency recognized suicidal thoughts as a side effect of finasteride tablets. In the US, the FDA issued a warning in April 2025 about custom-made finasteride products applied to the scalp.

• World newsOctober 19, 2026

  Illegal hair transplant warning: what does the ISHRS 2025 member survey show?

  According to a member survey published in May 2025 by the International Society of Hair Restoration Surgery (ISHRS), the share of member physicians who report illegal hair transplant providers in their city has risen. We explain the limits of these figures and what you can ask before a procedure.

The questions we hear most in consultations and examinations. We answer each as general information, with its limits; the answer for you becomes clear in the examination.

• Patient questionsOctober 19, 2026

  Do you need a second hair transplant session?

  Not everyone needs a second hair transplant session. We explain when one comes up, why there is a wait between two sessions, and how we make this decision.

• Patient questionsOctober 19, 2026

  What questions should you ask when choosing a hair transplant clinic?

  Getting clear answers to a few basic questions lets you compare your options by the same criteria. We explain which questions you can ask, from the examination to follow-up, and why they matter.

• Patient questionsOctober 19, 2026

  Can you have a hair transplant if you have diabetes, high blood pressure or hepatitis?

  A chronic illness does not automatically rule out a hair transplant; what matters is whether the condition is under control and what the doctor who treats you thinks. We explain how diabetes, high blood pressure and blood-borne infections affect the procedure.