As an expert in the field of hair science and texture analysis, I've spent a significant amount of time studying the various characteristics that define hair types. When it comes to the question of whether coarse hair is thick, it's important to understand the terminology and the underlying science behind hair structure.

Hair Texture and Diameter
The texture of hair is determined by the shape of the hair follicle and the pattern of medullation, or the internal structure of the hair shaft. Hair can be classified into three primary textures: straight, wavy, and curly. Within each of these categories, there are further sub-classifications based on the hair's diameter, which is the thickness of an individual hair strand.

Coarse Hair Definition
Coarse hair is generally characterized by a larger diameter, which means that the individual hair strands are thicker. This thickness is due to the fact that coarse hair has less medullation, or the fluffy, air-filled structure within the hair shaft. With less medullation, the hair strand is more solid and thus appears thicker.

Density vs. Diameter
It's crucial not to confuse hair density with hair diameter. Hair density refers to the number of hair follicles per square inch on the scalp, which is a separate characteristic from the actual thickness of each hair strand. A person can have a high density of hair but fine hair strands, or a low density with coarse hair strands.

The statement, "If you feel a strong, thick strand, then you are coarse," suggests that the perceived strength and thickness of a hair strand can be an indicator of its coarseness. However, this is only one aspect of the assessment. The full evaluation of hair texture is more complex and involves various factors.

Medium Texture Hair
According to the reference provided, if a hair strand is the same width as a thread, it is considered to have a medium texture. This comparison is useful for individuals trying to self-assess their hair type. If a strand is thinner or thicker than the thread, it indicates fine or coarse hair, respectively.

Hair Care Implications
Understanding whether your hair is coarse and thick is not just an academic exercise; it has practical implications for hair care. Coarse hair tends to be more resistant to damage due to its thickness but may also be more prone to dryness because the larger diameter can make it harder for moisture to penetrate the hair shaft.

Conclusion
In conclusion, coarse hair is indeed characterized by a larger diameter, making the individual strands thicker. However, it's essential to differentiate between hair diameter, which is about the thickness of the strands, and hair density, which is about the number of hair follicles. Proper care for coarse hair involves addressing its unique needs, such as providing adequate moisture and using products designed for thicker hair types.

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If you feel a strong, thick strand, then you are coarse. "Don't confuse the density of hair with diameter," Papanikolas emphasizes. ... "If it's the same width as the thread, your hair has medium texture, but if it's thinner or thicker, so is your hair."Mar 30, 2015read more >>