Bulldog Scalp, also called cutis verticis gyrata (CVG), is described in this Bumpinator chapter as a scalp condition that causes deep folds and ridges. Dr. Sanusi Umar explains that CVG can be primary or secondary, then introduces Robert, whose acne keloidalis nuchae progressed and contributed to the development of his condition.
What Is Bulldog Scalp?
The chapter begins with a direct definition: “Bulldog Scalp is a scalp condition causing deep folds and ridges.” Dr. Umar distinguishes between two forms. Primary Bulldog Scalp occurs independently, while secondary Bulldog Scalp is linked to other underlying medical issues.
That distinction is important to Robert’s story because his case is presented as secondary rather than independent. The focus of this short chapter is the relationship between his pre-existing scalp disease and the development of the pronounced folds associated with CVG.

Robert’s Acne Keloidalis Nuchae Progressed
Dr. Umar identifies Robert as the patient in this chapter and states that Robert had acne keloidalis nuchae that progressed unabated. According to the video, that progression contributed to the development of his Bulldog Scalp.
The accompanying caption further frames Bulldog Scalp as folds and waves that can appear on their own or develop because of conditions such as acne keloidalis nuchae. It also notes that CVG can affect scalp hygiene, cause irritation, and affect daily life.
Understanding the Cause Guides the Story
For Robert, the key point in this chapter is not simply the appearance of the scalp folds. It is the underlying context Dr. Umar identifies: a case of acne keloidalis nuchae that continued to progress and contributed to secondary CVG.
This chapter establishes that clinical connection without revealing a later treatment result. Robert’s story continues with Dr. Umar’s care and the next steps in addressing a difficult scalp condition.

Watch the Chapter
Watch Robert’s Bumpinator chapter: YouTube Short
Take the Next Step
See the video on Instagram or TikTok
Free Consultationhttps://dru.com/akn-treatment/
Medical Disclaimer
This article describes one patient’s experience and is provided for educational purposes only. Individual conditions, treatment plans, and outcomes vary. Nothing here should be interpreted as a guarantee of results or a substitute for evaluation by a qualified medical professional.
Further Reading
- Umar, S., & Sila, C. R. (2021). Acne keloidalis nuchae: A role for low-dose radiotherapy. JAAD Case Reports, 13, 90–93. https://doi.org/10.1016/j.jdcr.2021.05.008
- https://dru.com/folliculitis-keloidalis-nuchae-life-before-after/
- https://dru.com/baldcast-27-years-giant-scalp-keloids-acne-keloidalis-nuchae/



