diff --git a/autoload/lsp.vim b/autoload/lsp.vim
index c305de769..2ef8755a3 100644
--- a/autoload/lsp.vim
+++ b/autoload/lsp.vim
@@ -29,6 +29,7 @@ augroup _lsp_silent_
     autocmd User lsp_float_opened silent
     autocmd User lsp_float_closed silent
     autocmd User lsp_buffer_enabled silent
+    autocmd User lsp_diagnostics_updated silent
 augroup END
 
 function! lsp#log_verbose(...) abort
diff --git a/autoload/lsp/ui/vim/diagnostics.vim b/autoload/lsp/ui/vim/diagnostics.vim
index cc888ae05..38c204011 100644
--- a/autoload/lsp/ui/vim/diagnostics.vim
+++ b/autoload/lsp/ui/vim/diagnostics.vim
@@ -18,6 +18,8 @@ function! lsp#ui#vim#diagnostics#handle_text_document_publish_diagnostics(server
     call lsp#ui#vim#highlights#set(a:server_name, a:data)
     call lsp#ui#vim#diagnostics#textprop#set(a:server_name, a:data)
     call lsp#ui#vim#signs#set(a:server_name, a:data)
+
+    doautocmd User lsp_diagnostics_updated
 endfunction
 
 function! lsp#ui#vim#diagnostics#force_refresh(bufnr) abort
diff --git a/doc/vim-lsp.txt b/doc/vim-lsp.txt
index ef2e7b66b..cfac92828 100644
--- a/doc/vim-lsp.txt
+++ b/doc/vim-lsp.txt
@@ -99,6 +99,7 @@ CONTENTS                                                  *vim-lsp-contents*
       lsp_server_init                       |lsp_server_init|
       lsp_server_exit                       |lsp_server_exit|
       lsp_buffer_enabled                    |lsp_buffer_enabled|
+      lsp_diagnostics_updated               |lsp_diagnostics_updated|
     Mappings                              |vim-lsp-mappings|
        <plug>(lsp-preview-close)            |<plug>(lsp-preview-close)|
        <plug>(lsp-preview-focus)            |<plug>(lsp-preview-focus)|
@@ -1235,6 +1236,20 @@ This autocommand is run after vim-lsp is enabled for the buffer. This event is
 triggered imediately when the buffer is currently active. If the buffer is not
 current active, the event will be triggered when the buffer will be active.
 
+lsp_diagnostics_updated                            *lsp_diagnostics_updated*
+
+This autocommand us run after every time after new diagnostics received and 
+processed by vim-lsp.
+>
+  function! DoSomething
+    echo lsp#get_buffer_diagnostics_counts()
+  endfunction
+
+  augroup OnLSP
+    autocmd!
+    autocmd User lsp_diagnostics_updated call DoSomething()
+  augroup END
+<
 
 ==============================================================================
 Mappings                                                  *vim-lsp-mappings*