diff --git a/man5/proc.5 b/man5/proc.5
index 17b8a237d..fac40b882 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -188,6 +188,9 @@ to view the contents of
 .IR /proc/[tid] " subdirectories"
 Each one of these subdirectories contains files and subdirectories
 exposing information about the thread with the corresponding thread ID.
+The contents of these directories are the same as the corresponding
+.IR /proc/[pid]/task/[tid]
+directories.
 .IP
 The
 .I /proc/[tid]
@@ -2932,6 +2935,9 @@ visible when one uses
 .BR ls (1)
 to view the contents of
 .IR /proc ).
+However, the pathnames of these directories are visible to
+(i.e., usable as arguments in)
+system calls that operate on pathnames.
 .TP
 .I /proc/apm
 Advanced power management version and battery information when